The magnetic moment of a circular coil ...

The magnetic moment of a circular coil carrying current is

Directly proportional to the length of the wire in the coil

Inversely proportional to the length of the wire in the coil

Directly proportional to the square of the length of the wire in the coil

Inversely proportional to the square of the length of the wire in the coil

Text Solution

Verified by Experts

The correct Answer is:

`M=NiAimpliesMpropAimpliesMpropr^(2)` (As `l=2pirimplieslpropr`)
` implies Mpropl^(2)`

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