Choose the co...

Question

Choose the correct chronological order of operation of an induction cooker.
1. Magnetic field due to the primary coil induces a current in the secondary coil.
2. The material of the cooking pan resists the induced current and heats up to cook food.
3. A magnetic field is set up in the primary coil of the induction cooker.
4. Current is supplied to the induction cooker.

4 - 3- 1 - 2

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1 - 2- 3 - 4

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4 - 1- 2 - 3

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1 - 4- 3 - 2

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Solution

The correct option is A 4 - 3- 1 - 2

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The mutual inductance of an induction coil is 5 H. In the primary coil, the current reduces from 5 A to zero in $10^{- 3} s$ . What is the induced e.m.f. in the secondary coil?

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(B)

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(D)

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