Electricity

IMPORTANT

Electricity: Overview

This topic covers concepts, such as, Comparison of AC and DC, Coulomb's Law, Electric Field due to a Long Hollow Charged Cylinder Using Gauss's Law and Ammeter etc.

Important Questions on Electricity

MEDIUM
IMPORTANT

Resistance of which material does not change with change in temperature ?

EASY
IMPORTANT

Which of the following is not primary type cell?

EASY
IMPORTANT

Types of rotating machines _____.

EASY
IMPORTANT

What is the distinguishing feature of a class C amplifier?

MEDIUM
IMPORTANT

A series circuit consists of R=20 Ω, L=20mH, and AC supply 60V with f=100Hz. The phase angle of current in respect of supply voltage will be ______.

EASY
IMPORTANT

Unbalanced 3 phased stator currents cause _____.

EASY
IMPORTANT

In synchronous motor the torque is proportional to _____.

EASY
IMPORTANT

Cavitations in centrifugal pump likely to occur at the

EASY
IMPORTANT

Generators works on the principle of production _____.

EASY
IMPORTANT

Most commonly used material for insulator is

EASY
IMPORTANT

______ refers to the class of logic circuit containing flip-flops.

EASY
IMPORTANT

Hunting in a synchronous motor takes place _____.

EASY
IMPORTANT

Dynamic braking can be used for _____.

EASY
IMPORTANT

Scott connections are used for ______.

EASY
IMPORTANT

Which of the following represents ohms law _____.

MEDIUM
IMPORTANT

Thin laminations are used in a machine in order to reduce

EASY
IMPORTANT

Which of the following statements are correct?

MEDIUM
IMPORTANT

A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. The plant capacity factor for the station is ______.

EASY
IMPORTANT

_____ is a device used to store electrical energy in an electrostatic field?

EASY
IMPORTANT

Under which of the following conditions hunting of synchronous motor is likely to occur?