Sr. No.

Content

Total 
Weightage 

DC Circuits:

Electrical circuit elements (R, L and C), voltage and current sources,
Kirchoff’s current and voltage laws, analysis of simple circuits with dc
excitation.
Superposition, Thevenin and Norton Theorems.
Time-domain analysis of first-order RL and RC circuits.

AC Circuits

Representation of sinusoidal waveforms, peak and RMS values, Phasor
representation of AC quantities, real power, reactive power, apparent
power, power factor.
Analysis of single-phase ac circuits consisting of R, L, C, RL, RC, RLC
combinations (series and parallel),
Series and parallel resonance.
Three phase balanced circuits, voltage and current relations in star and
delta connections, Power measurement in three phase circuits.

Transformers

Magnetic materials, BH characteristics.
Construction and working principle of single phase and three phase
transformers.
Ideal and practical transformer.
Auto-transformer and its applications.

Electrical Machines

Generation of rotating magnetic fields.

Construction and working of following machines:

1. Three-phase induction motor
2. Single-phase induction motor.
3. Separately excited DC motor.
4. Synchronous generators.

Electrical Installations

Components of LT Switchgear: Switch Fuse Unit (SFU), MCB, ELCB,
MCCB.
Types of Wires and Cables.
Earthing – Types of earthing and its importance.
Safety precautions for electrical appliances.
Types of Batteries, Important Characteristics for Batteries.
Elementary calculations for energy consumption.
Basics of power factor improvement.