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Find the magnetic moment of the current ...

Find the magnetic moment of the current carrying loop `OABCO` shown in figure.

Given that `i=4.0A, OA=20cm` and `AB=10cm`.

Text Solution

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The correct Answer is:
A, B, D
`M=i(COXXOA)`
`=i(COxxCB)`
`=4[(-0.1hati)xx(0.2xxcos30^@hatj+0.2sin30^I@hatk)`
`=(0.04hatj-0.07hatk)A-m^2`
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