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When the torque exerted on magnet place ...

When the torque exerted on magnet place in magnetic field, would be maximum ?

A

`theta = 0^(@)`

B

`theta = (pi)/(2)`

C

`m=0`

D

`B=0`

Text Solution

Verified by Experts

The correct Answer is:
B
For `tau= tau_("max")`, we should have
`sin theta = "max" = 1`
`therefore theta = 90^(@) = (pi)/(2) "rad"`
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