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In a particle accelerator, a current of ...

In a particle accelerator, a current of `500muA` is carried by a proton beam in which each proton has speed of `3xx10^(7)m//s`. The cross sectional area of the beam is `1.50mm^(2)`. The charge density in this beam in Coulomb/m3 is close to

A

`10^(-8)`

B

`10^(-7)`

C

`10^(-6)`

D

`10^(-5)`

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The correct Answer is:
D
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