Eddy Currents

IMPORTANT

Eddy Currents: Overview

This topic covers concepts such as Eddy Currents, Direction of Eddy Current, Method to Minimize Eddy Currents, Application of Eddy Currents, Magnetic Braking in Trains, Electromagnetic Damping, Induction Furnace, Disadvantages of Eddy Current, etc.

Important Questions on Eddy Currents

MEDIUM
IMPORTANT

What of the following is used in the speedometers to measure speed of a vehicle?

EASY
IMPORTANT

What is demonstration experiment?

EASY
IMPORTANT

What is eddy current explain any four application of eddy current?

EASY
IMPORTANT

From below which of them are used in electrostatic experiments and demonstrations?

EASY
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What is eddy current loss simple explanation?

HARD
IMPORTANT

The induction furnace uses the _____ effect of current to produce heat.

HARD
IMPORTANT

What are the method for minimise eddy currents?

EASY
IMPORTANT

Lenz's law follows when eddy currents are generated.

EASY
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Which two laws are used to find the direction of eddy currents?

EASY
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What is electromagnetic damping?

MEDIUM
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Write the applications of eddy current. Answer in brief.

EASY
IMPORTANT

Eddy current induced in the rails oppose the motion of the train.

EASY
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Eddy currents travel in

HARD
IMPORTANT

Electromagnetic damping is inversely proportional to

MEDIUM
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Electromagnetic damping is similar to

HARD
IMPORTANT

Electromagnetic damping is associated with:

HARD
IMPORTANT

Why are the core of induction coils constructed as a number of thin strips instead of a solid block?

HARD
IMPORTANT

Which of the following is a disadvantage of eddy currents?

HARD
IMPORTANT

Which of the following is essential for the working of an induction furnace?

HARD
IMPORTANT

On what principle does an induction furnace works?