The core of a coil has a length of ___

The core of a coil has a length of 200 mm.

The inductance of coil is 6 mH.

If the core length is doubled, all other quantities, remaining the same, the inductance will be

A. 3 mH
B. 12 mH
C. 24 mH
D. 48 mH

Show Answer

Answer: A

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