Poly Lecturer Electronics

Resistor Colour Code: The resistor color code is a system used to indicate the value and tolerance of a resistor through the use of colored bands or stripes

ac and dc transmission: Electrical energy generated at power stations can be transmitted to different load centres, using overhead lines or underground

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Speed Control of DC Motor: The process of intentionally changing the drive speed of DC Motor is called Speed control of DC Motor. The DC Motor speed can be

Three Phase System: In an electrical power system, there are two types of systems, namely: single-phase and poly-phase systems.In a three-phase system, three

Electrical Substation: The assembly of apparatus used to change some characteristics such as voltage, a.c. to d.c., frequency, p.f. of electric supply is

Electrical Questions and Answers: In this Post, Electrical Engineering Interview Questions and answers are given.

Types of Lightning Arresters: There are several lightning arrester types in general use. They differ only in constructional details, but operate on the same

In this Post, Lightning Arrester Objective Questions and answers are give. you can find MCQs on surge absorbers also.