UNIT I DC CIRCUITS 9
Voltage, Current, Power, Energy – Resistive elements – Ohm’s law – Series and Parallel circuits – Ideal and
Practical Sources – Kirchoff’s law – Simple Problems.
UNIT II AC CIRCUITS 9
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)
UNIT III ELECTRICAL WIRING AND SAFETY 9
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
UNIT IV ELECTRONIC DEVICES AND APPLICATIONS 9
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
UNIT V RECTIFIERS AND POWER SUPPLIES 9
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
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