From 30b95cbae8afc84bc951892f576968f089c5368d Mon Sep 17 00:00:00 2001
From: Trupti Kini
Date: Sat, 9 Jan 2016 23:30:04 +0600
Subject: Added(A)/Deleted(D) following books A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_1.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_10.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_11.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_13.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_2.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_3.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_4.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_5.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_6.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_7.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/CHAPTER_9.ipynb
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/screenshots/main1.png
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/screenshots/main2.png
A
Microwaves_and_Radar_Principles_and_Applications_by_A._K._Maini/screenshots/main3.png
A sample_notebooks/AumkarRane/Chapter9.ipynb A
sample_notebooks/DevikaRaj/Chapter6.ipynb
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+{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# Chapter 6: Measuring instruments"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 1: pg 235"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 1,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The shunt resistance required in (ohm) = 0.163\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 235\n",
+ "#calculate the shunt resistance\n",
+ "# Given data\n",
+ "Rm = 8.;# in ohm\n",
+ "Im = 20.;# in mA\n",
+ "Im = Im * 10**-3;# in A\n",
+ "I = 1.;# in A\n",
+ "#calculations\n",
+ "# Multiplying factor\n",
+ "N = I/Im;\n",
+ "# Shunt resistance\n",
+ "Rsh = Rm/(N-1);# in ohm\n",
+ "#results\n",
+ "print \"The shunt resistance required in (ohm) = \",round(Rsh,3)\n",
+ " "
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 2: pg 235"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The multiplying factor is 241.0\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 235\n",
+ "#calculate the multiplying factor\n",
+ "# Given data\n",
+ "Rm = 6;# in ohm\n",
+ "Rsh = 0.025;# in ohm\n",
+ "#calculations\n",
+ "N = 1 + (Rm/Rsh);# multiplying factor\n",
+ "#results\n",
+ "print \"The multiplying factor is\",N\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 3: pg 235"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The resistance to be connected in parallel in (ohm) = 0.0761\n",
+ "The resistance to be connected in series in (ohm) = 661.67\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 235\n",
+ "#calculate the resistances to be connected in parallel and series\n",
+ "# Given data\n",
+ "Rm = 5.;# in ohm\n",
+ "Im = 15.;# in mA\n",
+ "Im = Im * 10**-3;# in A\n",
+ "I = 1.;# in A\n",
+ "#calculations\n",
+ "N = I/Im;# multiplying factor\n",
+ "Rsh = Rm/(N-1);# in ohm\n",
+ "print \"The resistance to be connected in parallel in (ohm) = \",round(Rsh,4)\n",
+ "V = 10;# in V\n",
+ "Rs = (V/Im)-Rm;# in ohm\n",
+ "print \"The resistance to be connected in series in (ohm) = \",round(Rs,2)\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 4: pg 236"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 4,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The current range of instrument in A is 50.0\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 236\n",
+ "#calculate the current range of the instrument\n",
+ "# Given data\n",
+ "V=250.;# full scale voltage reading in V\n",
+ "Rm = 2.;# in ohm\n",
+ "Rsh = 2.;# in m ohm\n",
+ "Rsh = Rsh * 10**-3;# in ohm\n",
+ "R = 5000.;# in ohm\n",
+ "#calculations\n",
+ "Im = V/(Rm+R);# in A\n",
+ "Ish = (Im*Rm)/Rsh;# in A\n",
+ "# Current range of instrument\n",
+ "I = Im+Ish;# in A\n",
+ "#results\n",
+ "print \"The current range of instrument in A is\",round(I)\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 5: pg 236"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 5,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The percentage error in (percentage) is 249.38\n",
+ "The answer is a bit different from textbook due to rounding off error\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 236\n",
+ "#calculate the percentage error\n",
+ "import math\n",
+ "from math import acos,pi,cos\n",
+ "# Given data\n",
+ "V = 230.;# in V\n",
+ "I = 35.;# in A\n",
+ "N = 200.;\n",
+ "t = 64.;# in sec\n",
+ "kwh = 500.;\n",
+ "#calculations\n",
+ "phi= acos(0.8);# in radians\n",
+ "Er = N/kwh;# in kWh\n",
+ "Et = V*I*cos(phi)*t;# in Joules\n",
+ "Et = Et/3600.;# in W hour\n",
+ "Et = Et * 10**-3;# in kWh\n",
+ "# percentage error\n",
+ "PerError = ((Er-Et)/Et)*100;# in %\n",
+ "#results\n",
+ "print \"The percentage error in (percentage) is\",round(PerError,2)\n",
+ "print 'The answer is a bit different from textbook due to rounding off error'\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 6: pg 237"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 6,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The percentage error in (percentage) is 3.22\n",
+ "The answer is a bit different from textbook due to rounding off error\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 237\n",
+ "#calculate the percentage error\n",
+ "from math import acos,cos,pi\n",
+ "# Given data\n",
+ "I = 50.;# in A\n",
+ "V = 230.;# in V\n",
+ "N = 61.;\n",
+ "t = 37.;# in sec\n",
+ "KWh = 500.;\n",
+ "#calculations\n",
+ "phi= acos(1);# in radians\n",
+ "Er = N/KWh;# in kWh\n",
+ "Et = V*I*cos(phi)*t;# in Joules\n",
+ "Et = Et/3600.;# in Wh\n",
+ "Et = Et*10**-3;# in kWh\n",
+ "# Percentage error\n",
+ "PerError = ((Er-Et)/Et)*100;# in %\n",
+ "#results\n",
+ "print \"The percentage error in (percentage) is \",round(PerError,2)\n",
+ "print 'The answer is a bit different from textbook due to rounding off error'"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 7: pg 237"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 7,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The series resistance in ohm is 24997.5\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 237\n",
+ "#calculate the series resistance\n",
+ "# Given data\n",
+ "Im = 20.;# in mA\n",
+ "Im = Im * 10**-3;# in A\n",
+ "Vm = 50.;# in mV\n",
+ "Vm = Vm * 10**-3;# in V\n",
+ "V = 500.;# in V\n",
+ "#calculations\n",
+ "Rm = Vm/Im;# in ohm\n",
+ "Rs = (V/Im)-Rm;# in ohm\n",
+ "#results\n",
+ "print \"The series resistance in ohm is\",Rs\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 8: pg 238"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 8,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The value of Rs in (ohm) is 9950.0\n",
+ "The value of Rsh in (ohm) is 0.505\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 238\n",
+ "#calculate the values of resistances\n",
+ "# Given data\n",
+ "Rm = 50;# in ohm\n",
+ "Im = 10;# in mA\n",
+ "Im = Im * 10**-3;# in A\n",
+ "V = 100;# in V\n",
+ "#calculations\n",
+ "Rs = (V/Im)-Rm;# in ohm\n",
+ "print \"The value of Rs in (ohm) is\",Rs\n",
+ "N = 1/Im;\n",
+ "Rsh = Rm/(N-1);# in ohm\n",
+ "print \"The value of Rsh in (ohm) is\",round(Rsh,3)\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 9: pg 238"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 9,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The percentage error in (percentage) is 2.08\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 238\n",
+ "#calculate the percentage error\n",
+ "# Given data\n",
+ "from math import acos,cos\n",
+ "I = 40.;# in A\n",
+ "V = 230.;# in V\n",
+ "N = 600.;\n",
+ "t = 46.;# in sec\n",
+ "#calculations\n",
+ "phi= acos(1);# in radians\n",
+ "P = V*I*cos(phi);# in W\n",
+ "P = P * 10**-3;# in kW\n",
+ "# 1 kWh = 500 revolution \n",
+ "P = P * 500.;# in revolution\n",
+ "T = (3600./t)*60;# in revolution\n",
+ "# Percentage error\n",
+ "PerError = ((T-P)/P)*100;# in %\n",
+ "#results\n",
+ "print \"The percentage error in (percentage) is\",round(PerError,2)\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 10: pg 238"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 11,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The percentage error in (percentage) is 4.167\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 238\n",
+ "#calculate the percentage error\n",
+ "# Given data\n",
+ "N = 100.;\n",
+ "I = 20.;# in A\n",
+ "V = 210.;# in V\n",
+ "pf = 0.8;# in lad\n",
+ "Er = 350.;# in rev\n",
+ "a = 3.36;# assumed\n",
+ "#calculations\n",
+ "Et = (a*3600.)/3600;# in kWh\n",
+ "# 1 kWh = 100;# revolution\n",
+ "Et = Et*N;# revolution\n",
+ "# Percentage error\n",
+ "PerError = ((Er-Et)/Et)*100;# in %\n",
+ "#results\n",
+ "print \"The percentage error in (percentage) is\",round(PerError,3)\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 11: pg 239"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 12,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The percentage error in (percentage) is 3.22\n"
+ ]
+ }
+ ],
+ "source": [
+ "#pg 239\n",
+ "#calculate the percentage error\n",
+ "# Given data\n",
+ "I = 5.;# in A\n",
+ "V = 230.;# in V\n",
+ "N = 61.;# number of revolution\n",
+ "t = 37.;# in sec\n",
+ "# speed of the disc\n",
+ "discSpeed= 500.;# in rev/kWh\n",
+ "#calculations\n",
+ "Er = N/discSpeed;\n",
+ "Et = (V*I*t)/(3600*100);\n",
+ "# percentage error\n",
+ "PerError = ((Er-Et)/Et)*100;# in %\n",
+ "#results\n",
+ "print \"The percentage error in (percentage) is\",round(PerError,2)\n"
+ ]
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 2",
+ "language": "python",
+ "name": "python2"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 2
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython2",
+ "version": "2.7.11"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}
--
cgit