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In which of the following devices, the eddy current effect is not used?

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+1 vote
42.2k views
in Physics by (69.8k points)

In which of the following devices, the eddy current effect is not used? 

(1) Induction furnace 

(2) Magnetic braking in train 

(3) Electromagnet 

(4) Electric heater

by (10 points)
What about Electromagnets there's no eddy current there.
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2 Answers

+2 votes
by (64.9k points)
selected by
 
Best answer

According to NTA official Answer key The answer will be

(3) Electromagnet 

(4) Electric heater

+2 votes
by (44.8k points)

The correct option is (4) Electric heater.

Explanation:

Electric heater does not involve Eddy currents. It uses Joule's heating effect.

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