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A horizontal wire 0*1m long having mass ...

A horizontal wire `0*1m` long having mass `3g` carries a current of `5A`. Find the magnitude of the magnetic field which must act `30^@` to the length of the wire inorder to support its weight.

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Verified by Experts

The correct Answer is:
`0*1176T`
`F=Bil sin theta=mg`
or `B=(mg)/(il sin theta)=((3xx10^-3)xx9*8)/(5xx0*1xxsin30^@)=0*1176T`
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