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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.

Text Solution

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The correct Answer is:
`0.12`
`F=Bilsin theta=mg`
`B = (mg)/(ilsin theta)=((3xx10^(-3))xx9.8)/(5xx0.1 xx sin 30^@)=0.1176 ~~0.12T`
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