EASY
Earn 100

Explain the working mechanism of MCB with diagram.

Important Questions on Electromagnetic Induction

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
What is the use of watt-hour meter in a household circuit?
EASY
Science>Physics>Electromagnetic Induction>Household Electrification

When does an electric short-circuit occur?

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? 

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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
At the time of short circuit the current in the circuit:
EASY
Science>Physics>Electromagnetic Induction>Household Electrification

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

MEDIUM
Science>Physics>Electromagnetic Induction>Household Electrification
What purpose is served by the terminals of a three-way pin plug?
EASY
Science>Physics>Electromagnetic Induction>Household Electrification
What are the two hazards associated with the use of electricity?
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
What does short circuit mean? How does a fuse help in the event of a short circuit?
MEDIUM
Science>Physics>Electromagnetic Induction>Household Electrification
Distinguish between the term "overloading" and "short circuiting" as used in domestic circuits.
EASY
Science>Physics>Electromagnetic Induction>Household Electrification
Explain the term short-circuiting?
EASY
Science>Physics>Electromagnetic Induction>Household Electrification
The most important safety method used for protecting home appliances from short-circuiting or overloading is:
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 are the causes of short circuiting?
MEDIUM
Science>Physics>Electromagnetic Induction>Household Electrification
What is short-circuiting of an electric circuit? An electric motor of 1.5 kW power rating is operated in a domestic electric circuit of current rating 5 A. What would happen when it is switched on? Give reason for your answer.
EASY
Science>Physics>Electromagnetic Induction>Household Electrification
A fuse is connected in series with the circuit it protects.
EASY
Science>Physics>Electromagnetic Induction>Household Electrification

Which switch in the circuit (shown in figure) when closed will produce short-circuiting?

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MEDIUM
Science>Physics>Electromagnetic Induction>Household Electrification
Why fuses are fitted in fuse box of a domestic electricity supply?