Voltage, Current, Power, Energy – Resistive elements – Ohm’s law – Series and Parallel circuits – Ideal and Practical Sources – Kirchoff’s law - Simple Problems.

Single Phase Circuits: Waveforms, Period, Peak value, Effective value – Inductive and Capacitive elements – Impedance, Power and Power factor-Simple Problems Three phase circuits and its advantages – Generation of three phase power (Block diagram representation)

Wiring: General Rules, materials and accessories, Types of wiring - Conduit wiring – Wiring layout of Residential building, Grounding: Importance of grounding, Types of grounding - Safety: Causes of accidents, Accident prevention. Circuit Breakers (MCB & ELCB),Electronic Fuses

Review on PN junction diode, Zener diode- Construction, Working principle and characteristics of BJT, JFET, MOSFET and SCR.LED, LCD ,OLED & QLED displays, Power Consumption

Rectifiers: Half wave, Full wave, Bridge Rectifiers, voltage regulator and Filters Power Supplies: Linear mode and Switched Mode Power supplies-UPS-Battery charger-Heat dissipation and heat sinks-Cooling fans