Electrical Technology

CONTENTS
1. Electric Current and Ohm's Law 1-47
Electron Drift Velocity-Charge Velocity and Velocity of Field Propagation-The Idea of
Electric Potential-Resistance-Unit of Resistance-Law of Resistance-Units of Resistiv-
ity-Conductance and Conductivity-Effect of Temperature on Resistance-Temperature
Coefficient of Resistance-Value of a at Different Temperatures-Variation of Resistivity
with Temperature-Ohm's Law-Resistance in Series-Voltage Divider Rule-Resistance

in ParalleJ-Types of Resistors-Nonlinear Resistors-Varistor-Short and Open Circuits-
'Shorts' in a Series Circuit-'Opens' in Series Circuit-'Open's in a Parallel Circuit-
'Shorts' in Parallel Circuits-Division of Current in Parallel Circuits-Equivalent Resis-
tance-Duality Between Series and Parallel Circuits-Relative Potential-Voltage Divider
Circuits-Objective Tests.
2. DC Network Theorems 48-167
Electric Circuits and Network Theorems-Kirchhoff's Laws-Determination of Voltage
Sign-Assumed Direction of Current-Solving Simultaneous Equations-Determinants-
Solving Equations with Two Unknowns-Solving Equations With Three Unknowns-Inde-
pendent and Dependent Sources -Maxwell's Loop Current Method-Mesh Analysis Using
Matrix Form-Nodal Analysis with Voltage Sources-Nodal Analysis with Current Sources-
Source Conversion-Ideal Constant-Voltage Source-Ideal Constant-Current Source-Su-
perposition Theorem- Thevenin Theorem-How to Thevenize a Given Circuit ?-General
Instructions for Finding Thevenin Equivalent Circuit-Reciprocity Theorem-Delta/Star
Transformation-StarlDelta Transformation-Compensation Theorem-Norton' s Theorem-
How to Nortanize a Given Circuit ?-General Instructions for Finding Norton Equivalent
Circuit-Millman's Theorem-Generalised Form of Millman's Theorem-Maximum Power
Transfer Theorem-Power Transfer Efficiency-Objective Tests.
3. Work, Power and Energy
n. 168-179
Effect of Electric Current-Joule's Law of Electric Heating-Thermal Efficiency-S-I.
Units-Calculation of Kilo-watt Power of a Hydroelectric Station-Objective Tests.
4. Electrostatics 180-200
Static Electricity-Absolute and Relative Permittivity of a Medium-Laws of Electro-
statics-Electric Field-Electrostatic Induction-Electric Flux and Faraday Tubes-Field
Strength or Field Intensity or Electric Intensity (E)-Electric Flux Density or Electric
Displacement D-Gauss Law-The Equations of Poisson and Laplace-Electric Potential
and Energy-Potential and Potential Difference-Potential at a Point-Potential of a Charged
Sphere-Equipotential Surfaces-Potential and Electric Intensity Inside a Conducting Sphere-
Potential Gradient-Breakdown Voltage and Dielectric Strength-Safety Factor of Dielec-
tric-Boundary Conditions-Objective Tests.
5. Capacitance
... 201-240
Capacitor-Capacitance-Capacitance of an Isolated Sphere-Spherical Capacitor - Par-
allel-plate Capacitor-Special Cases of Parallel-plate Capacitor-Multiple and Variable