A magnet of length 0.1 m and pole streng...

A magnet of length `0.1 m` and pole strength `10^(-4)` A.m. is kept in a magnetic field of `30 Wb//m^(2)` at an angle `30^(@)`. The couple acting on it is `…xx10^(-4)Nm`.

`7.5 xx 10^(-4)N-m`

`3.0 xx 10^(-4) N-m`

`1.5 xx 10^(-4) N-m`

`6.0 xx 10^(-4) N-m`

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