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The maximum force acting on a straight c...

The maximum force acting on a straight conductor of length 15 cm, placed in a magnetic field of induction `5 xx 10^(-5) N//A` m is `3 xx 10^(-4)` N then the current flowing in conductor is

A

40 mA

B

`4 xx 10^-3 A`

C

400 mA

D

40 A

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