to stop the supply of current in case of overloading or short circuit

to supply high current in case of overloading

to supply high current in case of short circuit

EASY

Earn 100

Explain the working mechanism of MCB with diagram.

Important Questions on Electromagnetic Induction

HARD

Science>Physics>Electromagnetic Induction>Household Electrification

Explain overloading, short-circuiting and an electric fuse. How does an electric fuse work in a domestic electric circuit?

EASY

Science>Physics>Electromagnetic Induction>Household Electrification

What is the use of

watt - hour

meter in a household circuit?

EASY

Science>Physics>Electromagnetic Induction>Household Electrification

What precautions should be taken to avoid overloading of domestic electric circuit?

EASY

Science>Physics>Electromagnetic Induction>Household Electrification

The diagram below shows a dual control switch circuit connected to a bulb. Out of A & B which one is the live wire and which one is the neutral wire?

Question Image

EASY

Science>Physics>Electromagnetic Induction>Household Electrification

At the time of short circuit the current in the circuit:

EASY

Science>Physics>Electromagnetic Induction>Household Electrification

When does an electric short-circuit occur?

EASY

Science>Physics>Electromagnetic Induction>Household Electrification

At the time of short circuit, the current in the circuit :

MEDIUM

Science>Physics>Electromagnetic Induction>Household Electrification

What purpose is served by the terminals of a three-way pin plug?

MEDIUM

Science>Physics>Electromagnetic Induction>Household Electrification

State one factor that can lead to a short circuit. Name the device in the household circuit that acts as a safety measure for it. State the principle of its working.

EASY

Science>Physics>Electromagnetic Induction>Household Electrification

What does short circuit mean? How does a fuse help in the event of a short circuit?

MEDIUM

Science>Physics>Electromagnetic Induction>Household Electrification

A circuit has a fuse of

2 A

. What is the maximum number of

40 W, 220 V

bulbs that can be safely used in the circuit?

MEDIUM

Science>Physics>Electromagnetic Induction>Household Electrification

Distinguish between the term "overloading" and "short circuiting" as used in domestic circuits.

HARD

Science>Physics>Electromagnetic Induction>Household Electrification

When is an electric circuit said to be overloaded? State two measures to avoid it. What name is given to a situation in which the live and the neutral wires accidently come in contact? State the role of a safety device in this situation.

MEDIUM

Science>Physics>Electromagnetic Induction>Household Electrification

Distinguish between the terms overloading and short-circuiting as used in domestic circuits.

EASY

Science>Physics>Electromagnetic Induction>Household Electrification

At the time of short circuiting, the current in the circuit :

EASY

Science>Physics>Electromagnetic Induction>Household Electrification

The use of fuse is

EASY

Science>Physics>Electromagnetic Induction>Household Electrification

At the time of overloading, the electric current in the circuit :