The torque required to keep a magnet of ...

The torque required to keep a magnet of length `10cm` at `45^(@)` to a uniform magnetic field is `sqrt2xx10^(-5)Nm`. The magnetic force on each pole is

0.2mN

`20muN`

0.02N

Text Solution

Verified by Experts

The correct Answer is:

`tau=MBsintheta`

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