Coil Interview Questions

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Total Questions: 5

1. As the number of turns in the coil increases, what happens to the inductance of the coil?

A. Increases

B. Decreases

C. Remains the same

D. Becomes zero

Correct Answer is : Increases

2. What happens to the inductance when the magnetic field strength decreases?

A. Increases

B. Decreases

C. Remains the same

D. Becomes zero

Correct Answer is : Decreases

3. What happens to the inductance when the current in the coil becomes double its original value?

A. Becomes half

B. Becomes four times

C. Becomes infinity

D. Becomes double

Correct Answer is : Becomes double

4. When the coil is wrapped around a ferromagnetic core, why is it difficult to determine the inductance?

A. The variation of flux is no longer proportional to the variation of current

B. Current does not exist in the coil

C. Flux does not exist in the coil

D. The value of current is too large to measure

Correct Answer is : The variation of flux is no longer proportional to the variation of current

5. What happens to the inductance as the area of the cross section of the coil increases?

A. Increases

B. Decreases

C. Remains the same

D. Becomes zero

Correct Answer is : Increases

Coil interview questions