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A bullet of mass 2 gm is having a charge...

A bullet of mass `2 gm` is having a charge of `2 muc`. Through what potential difference must it be accelerated, starting from rest, to acquire a speed of `10 m//s`

A

5 kV

B

50 kV

C

5 V

D

50 V

Text Solution

Verified by Experts

The correct Answer is:
B
By work energy theorem
`1/2mv^2 =qVimpliesV=1/2(xx2 xx10^(-3)xx(10)^2)/(2xx10^6)`
`=5xx10^4 V=50 kV`
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