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Diffstat (limited to 'Electronic_Circuits_by_M._H._Tooley/Chapter2_2.ipynb')
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diff --git a/Electronic_Circuits_by_M._H._Tooley/Chapter2_2.ipynb b/Electronic_Circuits_by_M._H._Tooley/Chapter2_2.ipynb new file mode 100644 index 00000000..20419576 --- /dev/null +++ b/Electronic_Circuits_by_M._H._Tooley/Chapter2_2.ipynb @@ -0,0 +1,1045 @@ +{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:b5194708e2447220722c4dfa1402fc797342ce58013c4fb6e50908b3fd6172f1"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter2-Passive Components "
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex1-pg23"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.1\n",
+ "import math\n",
+ "marked=220.;##in ohms\n",
+ "measured=207.;##in ohms\n",
+ "err=marked-measured;\n",
+ "tol=(err/marked)*100.;\n",
+ "print'%s %.2f %s'%(\"Tolerance = \",tol,\"\");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Tolerance = 5.91 \n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex2-pg23"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.2\n",
+ "import math\n",
+ "r=39.;##in ohms\n",
+ "v=9.;##in volts\n",
+ "i=(v/r);##in Amps\n",
+ "print'%s %.2f %s'%(\"Current = \",i*1000,\" mA\");\n",
+ "tol=0.1;##i.e, 10%\n",
+ "r_min=r-(tol*r);\n",
+ "i_max=v/r_min;\n",
+ "r_max=r+(tol*r);\n",
+ "i_min=v/r_max;\n",
+ "print'%s %.2f %s %.2f %s '%(\"\\n Max.Current = \",i_max*1000,\" mA \" and \"\",i_min*1000,\" Min Current\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Current = 230.77 mA\n",
+ "\n",
+ " Max.Current = 256.41 209.79 Min Current \n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex3-pg23"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.3\n",
+ "import math\n",
+ "v=28.;##in volts\n",
+ "i=0.1;##in A\n",
+ "r=v/i;\n",
+ "p=v*i;\n",
+ "print'%s %.2f %s %.2f %s '%(\"Resistance Value = \",r,\" ohms & Power dissipated\"\" = \",p,\" W\");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Resistance Value = 280.00 ohms & Power dissipated = 2.80 W \n"
+ ]
+ }
+ ],
+ "prompt_number": 4
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex4-pg24"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.4\n",
+ "import math\n",
+ "r=10*(10**2);\n",
+ "print'%s %.2f %s'%(\"Resistor value = \",r,\" ohm\");\n",
+ "print(\"\\nTolerance = 10 \");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Resistor value = 1000.00 ohm\n",
+ "\n",
+ "Tolerance = 10 \n"
+ ]
+ }
+ ],
+ "prompt_number": 5
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex5-pg24"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.5\n",
+ "import math\n",
+ "r=27.*(10**3);\n",
+ "print'%s %.2f %s'%(\"Resistor value = \",r,\" ohm\");\n",
+ "print(\"\\nTolerance = 5 \");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Resistor value = 27000.00 ohm\n",
+ "\n",
+ "Tolerance = 5 \n"
+ ]
+ }
+ ],
+ "prompt_number": 6
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex6-pg24"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.6\n",
+ "import math\n",
+ "r=56*(10);\n",
+ "print'%s %.2f %s'%(\"Resistor value = \",r,\" ohm\");\n",
+ "print(\"\\nTolerance = 5 \");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Resistor value = 560.00 ohm\n",
+ "\n",
+ "Tolerance = 5 \n"
+ ]
+ }
+ ],
+ "prompt_number": 7
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex7-pg24"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.7\n",
+ "import math\n",
+ "r=25.*(10**0);\n",
+ "print'%s %.2f %s'%(\"Resistor value = \",r,\" ohm\");\n",
+ "print(\"\\nTolerance = 20 \");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Resistor value = 25.00 ohm\n",
+ "\n",
+ "Tolerance = 20 \n"
+ ]
+ }
+ ],
+ "prompt_number": 8
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex8-pg25"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.8\n",
+ "import math\n",
+ "r=22.*(10**3);\n",
+ "print(\"Bands are Red, Red, Red, Red\");\n",
+ "\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Bands are Red, Red, Red, Red\n"
+ ]
+ }
+ ],
+ "prompt_number": 9
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex9-pg25"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.9\n",
+ "import math\n",
+ "print(\"Resistance = 4.7 ohm with 10%% tolerance\");\n",
+ "\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Resistance = 4.7 ohm with 10%% tolerance\n"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex10-pg25"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.10\n",
+ "import math\n",
+ "print(\"Resistance = 330 ohms with 2%% tolerance\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Resistance = 330 ohms with 2%% tolerance\n"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex11-pg26"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.11\n",
+ "import math\n",
+ "print(\"Resistance = 0.22 ohm with 20%% tolerance\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Resistance = 0.22 ohm with 20%% tolerance\n"
+ ]
+ }
+ ],
+ "prompt_number": 12
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex12-pg26"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.12\n",
+ "import math\n",
+ "r1=22.;##in ohms\n",
+ "r2=47.;##in ohms\n",
+ "r3=33.;##in ohms\n",
+ "r_ser=r1+r2+r3;\n",
+ "print'%s %.2f %s'%(\"Effective resistance in series = \",r_ser,\" ohms\");\n",
+ "r_parel=((1./r1)+(1./r2)+(1./r3))**-1;\n",
+ "print'%s %.2f %s'%(\"\\n Effective resistance in parallel = \",r_parel,\" ohms\");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Effective resistance in series = 102.00 ohms\n",
+ "\n",
+ " Effective resistance in parallel = 10.31 ohms\n"
+ ]
+ }
+ ],
+ "prompt_number": 13
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex13-pg27"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.13\n",
+ "import math\n",
+ "r1=4.7;##in ohms\n",
+ "r2=47.;##in ohms\n",
+ "r3=12.;##in ohms\n",
+ "r4=27.;##in ohms\n",
+ "r5=r3+r4;\n",
+ "r_parel=((1./r5)+(1./r2))**-1;\n",
+ "r_eff=r_parel+r1;\n",
+ "print'%s %.2f %s'%(\"Effective resistance = \",r_eff,\" ohms\");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Effective resistance = 26.01 ohms\n"
+ ]
+ }
+ ],
+ "prompt_number": 14
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex14-pg27"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.14\n",
+ "import math\n",
+ "print(\"Two 100 ohm resistor of 1 W\");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Two 100 ohm resistor of 1 W\n"
+ ]
+ }
+ ],
+ "prompt_number": 15
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex15-pg28"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.15\n",
+ "import math\n",
+ "temp_coeff=0.001;##in per degree centigrade\n",
+ "r_o=1500.;##in ohm\n",
+ "t=80.;##temperature diff.\n",
+ "r_t=r_o*(1.+(temp_coeff)*t)\n",
+ "print'%s %.2f %s'%(\"Resistance at \",r_t,\" degree = ohms\");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Resistance at 1620.00 degree = ohms\n"
+ ]
+ }
+ ],
+ "prompt_number": 16
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex16-pg28"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.16\n",
+ "import math\n",
+ "temp_coeff=0.0005;##in per degree centigrade\n",
+ "r_t1=680.;##in ohm\n",
+ "t1=20.;##temperature diff.\n",
+ "t2=90.;\n",
+ "r_o=r_t1/(1.+(temp_coeff)*t1);\n",
+ "r_t2=r_o*(1.+(temp_coeff)*t2);\n",
+ "print'%s %.2f %s %.2f %s '%(\"Resistance at \",t2,\" degree = \",r_t2,\" ohms\");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Resistance at 90.00 degree = 703.56 ohms \n"
+ ]
+ }
+ ],
+ "prompt_number": 17
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex17-pg29"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.17\n",
+ "import math\n",
+ "r_o=40.;##resis at 0 degree\n",
+ "r_t=44.;##at 100 degree\n",
+ "t=100.;##temperature diff.\n",
+ "temp_coeff=(1./t)*((r_t/r_o)-1.);\n",
+ "print'%s %.2e %s'%(\"Temperature Coefficient = \",temp_coeff,\" per degree centigrade\");\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Temperature Coefficient = 1.00e-03 per degree centigrade\n"
+ ]
+ }
+ ],
+ "prompt_number": 18
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex18-pg33"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.18\n",
+ "import math\n",
+ "V_1=50.;\n",
+ "V_2=10.;\n",
+ "dV=V_1-V_2;##in volts\n",
+ "dt=0.1;##in seconds\n",
+ "C=22.*10**-6;\n",
+ "i=C*(dV/dt)*1000.;##in mA\n",
+ "print'%s %.2f %s'%(\"Current flow = \",i,\" milliAmps\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Current flow = 8.80 milliAmps\n"
+ ]
+ }
+ ],
+ "prompt_number": 19
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex19-pg33"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.19\n",
+ "import math\n",
+ "C=10.*10**-6;\n",
+ "V=250.;##in volts\n",
+ "Q=V*C*1000.;##in millicoulomb\n",
+ "print'%s %.2f %s'%(\"Charged stored =\",Q,\" mC\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Charged stored = 2.50 mC\n"
+ ]
+ }
+ ],
+ "prompt_number": 20
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex20-pg33"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.20\n",
+ "import math\n",
+ "C=47.*10**-6;##in farads\n",
+ "W=4.;##energy in joules\n",
+ "V=math.sqrt(W/(0.5*C));\n",
+ "print'%s %.2f %s'%(\"Voltage tht be applied = \",V,\" volts\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Voltage tht be applied = 412.57 volts\n"
+ ]
+ }
+ ],
+ "prompt_number": 21
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex21-pg34"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.21\n",
+ "import math\n",
+ "E_o=8.85*10**-12;\n",
+ "E_r=5.4;\n",
+ "C=1*10**-9;\n",
+ "d=0.1*10**-3;\n",
+ "A=(C*d)/(E_o*E_r)*10**4;\n",
+ "print'%s %.2f %s'%(\"Required plate area = \",A,\" sq. cm\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Required plate area = 20.92 sq. cm\n"
+ ]
+ }
+ ],
+ "prompt_number": 22
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex22-pg34"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.22\n",
+ "import math\n",
+ "E_o=8.85*10**-12;\n",
+ "E_r=4.5;\n",
+ "n=6.;##no. of plates\n",
+ "d=0.2*10**-3;##in meter\n",
+ "A=20.*10**-4;##in sq.meter\n",
+ "C=((E_o*E_r*(n-1.)*A)/d)*10**11;\n",
+ "print'%s %.2f %s'%(\"Capacitance = \",C,\" pF\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Capacitance = 199.12 pF\n"
+ ]
+ }
+ ],
+ "prompt_number": 23
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex23-pg36"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.23\n",
+ "import math\n",
+ "print(\"Capacitance = 10000 pF of 10%%\"); "
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Capacitance = 10000 pF of 10%%\n"
+ ]
+ }
+ ],
+ "prompt_number": 24
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex24-pg36"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.24\n",
+ "import math\n",
+ "print(\"Capacitance = 150 pF of 2%% tolerance at 100 V\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Capacitance = 150 pF of 2%% tolerance at 100 V\n"
+ ]
+ }
+ ],
+ "prompt_number": 25
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex25-pg37"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.25\n",
+ "import math\n",
+ "C1=2.;##in nF\n",
+ "C2=4.;##in nF\n",
+ "C3=2.;\n",
+ "C4=4.;\n",
+ "C_a=C1+C2;\n",
+ "C_b=C_a*C3/(C_a+C3);\n",
+ "C_eff=C4+C_b;\n",
+ "print'%s %.2f %s'%(\"Capacitance = \",C_eff,\" nF\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Capacitance = 5.50 nF\n"
+ ]
+ }
+ ],
+ "prompt_number": 26
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex26-pg37"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.26\n",
+ "import math\n",
+ "C=100.;##in uF\n",
+ "C_eff=C*C/(C+C);\n",
+ "print'%s %.2f %s'%(\"Two capacitors of uF be in parallel used to make \",C_eff,\" uF capacitance\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Two capacitors of uF be in parallel used to make 50.00 uF capacitance\n"
+ ]
+ }
+ ],
+ "prompt_number": 27
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex27-pg40"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.27\n",
+ "import math\n",
+ "L=600.*10**-3;##in H\n",
+ "I1=6.;##in A\n",
+ "I2=2.;##in A\n",
+ "dI=I1-I2;\n",
+ "dt=250.*10**-3;##in sec.\n",
+ "E=-L*(dI/dt);\n",
+ "print'%s %.2f %s'%(\"Induced voltage = \",E,\" volts\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Induced voltage = -9.60 volts\n"
+ ]
+ }
+ ],
+ "prompt_number": 28
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex28-pg40"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.28\n",
+ "import math\n",
+ "E=2.5;##energy in joules\n",
+ "L=20.*10**-3;##in henry\n",
+ "I=math.sqrt(E/(0.5*L));\n",
+ "print'%s %.2f %s'%(\"Current = \",I,\" A\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Current = 15.81 A\n"
+ ]
+ }
+ ],
+ "prompt_number": 29
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex29-pg40"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.29\n",
+ "import math\n",
+ "u_o=12.57*10**-7;\n",
+ "u_r=500.;\n",
+ "A=15.*10**-4;##area of cross-section in sq. meters\n",
+ "l=20.*10**-2;##length\n",
+ "L=100.*10**-3;##in henry\n",
+ "n=math.sqrt((L*l)/(u_r*u_o*A));\n",
+ "print'%s %.2f %s'%(\"Inductor requires \",n,\" turns of wire\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Inductor requires 145.65 turns of wire\n"
+ ]
+ }
+ ],
+ "prompt_number": 30
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex30-pg42"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.30\n",
+ "import math\n",
+ "##L=(L1*L2)/(L1+L2)\n",
+ "L_eq=5.;##in millihenry\n",
+ "print'%s %.2f %s'%(\"Inductor of 10 mH wired in parallel would provide \",L_eq,\" mH\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Inductor of 10 mH wired in parallel would provide 5.00 mH\n"
+ ]
+ }
+ ],
+ "prompt_number": 31
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex31-pg42"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "##Ex:2.31\n",
+ "import math\n",
+ "L1=60.;##in mH\n",
+ "L2=60.;##in mH\n",
+ "L_a=L1+L2;\n",
+ "L3=120.;##in mH\n",
+ "L_b=L_a*L3/(L_a+L3);\n",
+ "L4=50.;##in mH\n",
+ "L_eq=L4+L_b;\n",
+ "print'%s %.2f %s'%(\"Equivalent Inductance = \",L_eq,\" mH\");"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Equivalent Inductance = 110.00 mH\n"
+ ]
+ }
+ ],
+ "prompt_number": 32
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
\ No newline at end of file |