1.

A magnet of magnetic moment 50 hati A m^2 is placed along the x-axis in a magnetic field vecB = (0.5hati +3.0hatj)T. The torque acting on the magnet is

Answer»

`175hatk N-m`
`150hatk N-m`
`75hatk N-m`
`25sqrt(37)hatk N-m`

SOLUTION :`vectau = vecm xx vecB = (50hati) xx (0.5hati + 3.0hatj)=150 hatk N-m`


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