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Question

Physics Question on Moving charges and magnetism

A magnetic pole of pole strength 9.2 A m. is placed in a field ofinduction 50×10−650 \times10^{-6} tesla. The ferce experienced by the pole is

A

46N

B

46×10−4N46\times 10^{-4}N

C

4.6×10−4N4.6\times 10^{-4}N

D

460N

Answer

4.6×10−4N4.6\times 10^{-4}N

Explanation

Solution

M=Mθ2 sin (θ2)M = \frac{M\theta}{2\, sin \, (\frac{\theta}{2})}