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A solenoid of length 20cm, area of cross...

A solenoid of length 20cm, area of cross- section `4.0 cm^2` and having 4000 turns is placed inside another solenoid of 2000 turns having a cross - sectional area `8.0cm ^2` and length 10 cm. Find the mutual inductance between the solenoids.

A

`3 xx 10^(-2)` H

B

20 mH

C

30 mH

D

40 mH

Text Solution

Verified by Experts

The correct Answer is:
B
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