diff options
| author | root | 2014-07-08 14:19:49 +0530 |
|---|---|---|
| committer | root | 2014-07-08 14:19:49 +0530 |
| commit | 80751050da776de062000a7d2a5b4e045bfbc9f8 (patch) | |
| tree | 50c3d69d219cfd1376e4b7a818ec7ce14a653812 /Electronic_devices_and_circuits/chapter11.ipynb | |
| parent | 64874ad005ac7fea242828c5094fc827e7736851 (diff) | |
| download | Python-Textbook-Companions-80751050da776de062000a7d2a5b4e045bfbc9f8.tar.gz Python-Textbook-Companions-80751050da776de062000a7d2a5b4e045bfbc9f8.tar.bz2 Python-Textbook-Companions-80751050da776de062000a7d2a5b4e045bfbc9f8.zip | |
adding book
Diffstat (limited to 'Electronic_devices_and_circuits/chapter11.ipynb')
| -rwxr-xr-x | Electronic_devices_and_circuits/chapter11.ipynb | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/Electronic_devices_and_circuits/chapter11.ipynb b/Electronic_devices_and_circuits/chapter11.ipynb new file mode 100755 index 00000000..4150f842 --- /dev/null +++ b/Electronic_devices_and_circuits/chapter11.ipynb @@ -0,0 +1,170 @@ +{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:9ece3b9f8730ff4f15d623a124d9415b373cdc935ed6cb089360bef5516a2604"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ " Chapter 11: Cathode Ray Oscilloscope"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 11.2,Page number 532"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Variable declaration\n",
+ "E=120 #electric field(V/m) \n",
+ "B=5*10**-5 #magnetic field(T) \n",
+ "q=1.6*10**-19 #charge on electron(C)\n",
+ "u=10**6 #velocity of electron(m/s)\n",
+ "m=9.1*10**-31 #mass of electron(Kg) \n",
+ "a=9.81 #acceleration of gravitation(m/s^2)\n",
+ "\n",
+ "#Calculations\n",
+ "#Part a\n",
+ "fe=q*E #force on electron due to electric field(N)\n",
+ "\n",
+ "#Part\n",
+ "fm=B*q*u #force on electron due to magnetic field(N)\n",
+ "\n",
+ "#Part c\n",
+ "fg=m*a #force on electron due to gravitational field(N)\n",
+ "\n",
+ "#Results\n",
+ "print\"force on electron due to electric field is\",fe,\"N\"\n",
+ "print\"force on electron due to magnetic field is\",fm,\"N\"\n",
+ "print\"force on electron due to gravitational field is\",fg,\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "force on electron due to electric field is 1.92e-17 N\n",
+ "force on electron due to magnetic field is 8e-18 N\n",
+ "force on electron due to gravitational field is 8.9271e-30 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 11.3,Page number 532"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Variable declaration\n",
+ "T1=1200. #temperature(k)\n",
+ "T2=1000. #temperature(k)\n",
+ "Ww=1.2*10**5 #work function(eV)\n",
+ "k=8.62\n",
+ "Ie1=200 #emission current density\n",
+ "T3=1500. #temperature(k)\n",
+ "\n",
+ "#Calculations\n",
+ "Ie2=Ie1*(T2/T1)**2*math.exp(-(Ww/k)*((1/T2)-(1/T1))) #current density(mA/cm^2) at 1000k\n",
+ "Ie3=Ie1*(T3/T1)**2*math.exp(-(Ww/k)*((1/T3)-(1/T1))) #current density(mA/cm^2) at 1000k\n",
+ "\n",
+ "#Results\n",
+ "print\"current density at 1000 k is\",round(Ie2,2),\"mA/cm^2\"\n",
+ "print\"current density at 1500 k is\",round(Ie3,2),\"mA/cm^2\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "current density at 1000 k is 13.65 mA/cm^2\n",
+ "current density at 1500 k is 3180.49 mA/cm^2\n"
+ ]
+ }
+ ],
+ "prompt_number": 7
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 11.4,Page number 533"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#Variable declaration\n",
+ "Ls=40 #distance from screen(m)\n",
+ "d=1.5 #distance between plates(cm)\n",
+ "Va=1200 #accelerating potential(V) \n",
+ "L=3 #length of CRT(m)\n",
+ "e=1.6*10**-19 #charge on electron(C)\n",
+ "m=9.1*10**-31 #mass of electron(Kg) \n",
+ "Y=4*10**-2 #vertical deflection(V)\n",
+ "\n",
+ "#Calculations\n",
+ "#Part a\n",
+ "U=math.sqrt((2*e*Va)/m) #velocity of electron upon striking screen(m/s)\n",
+ "\n",
+ "#Part\n",
+ "Vd=(2*d*Va*Y)/(L*Ls) #deflecting voltage(V)\n",
+ "\n",
+ "#Part c\n",
+ "Vdmax=(m*d**2*U**2)/(e*L**2) #maximum allowable deflection(V)\n",
+ "\n",
+ "#Results\n",
+ "print\"velocity of electron upon stricking the screen is\",round((U/1E+7),3),\"*10^7 m/s\"\n",
+ "print\"deflecting voltage is\",round(Vd/1E-2),\"V\"\n",
+ "print\"maximum allowable deflection is\",Vdmax,\"V\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "velocity of electron upon stricking the screen is 2.054 *10^7 m/s\n",
+ "deflecting voltage is 120.0 V\n",
+ "maximum allowable deflection is 600.0 V\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
\ No newline at end of file |