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A long straight wire carries a current of 50 A. An electron moving at `10^(7)` m/s is 5 cm away from the wire. The force acting on electron if its velocity is directed towards the wire will be

A

`1.6xx10^-16 N`

B

`3.2xx10^-16 N`

C

`4.8xx10^-16 N`

D

`1.8xx10^-16 N`

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CHETANA PUBLICATION-Magnetic Fields due to Electric Current-Exercise
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  10. State the principle of moving coil Galvanometer?

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