A magnet of length 10 cm and pole streng...

A magnet of length `10 cm` and pole strength `4xx10^(-4)Am` is placed in a manetic field of induction `2xx10^(-5)weber m^(-2)`, such that the axis of the magnet makes an angel `30^(0)` with the lines of induction. The moment of the couple acting on the magnet is

`4xx10^(-10)Nm`

`8xx10^(-10)Nm`

`4xx10^(-6)Nm`

`sqrt3xx10^(-11)Nm`

Text Solution

Verified by Experts

The correct Answer is:

`C=MB sin theta`

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NARAYNA-MAGNETISM-LEVEL-I(C.W)

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