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The inductance of a coil is 10 H. What i...

The inductance of a coil is 10 H. What is the ratio of its reactance when it is connected first to an A.C. source and then to a D.C. source?

A

10

B

0

C

`oo`

D

`0.5`

Text Solution

Verified by Experts

The correct Answer is:
C
For A.C., Reactance `(X_L) = omega L for D.C., f =0`,
`:. Omega = 2pif = 0 :. Ratio = (omega L)/0) = oo`.
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