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Calculate the magnitude of the electric ...

Calculate the magnitude of the electric field which can just balance a deuteron of mass `3.2xx10^(-27) kg`

A

`2 xx10^(-7)`

B

`3 * 10^(-7)`

C

`4 * 10^(-7)`

D

`5 * 10^(-7)`

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The correct Answer is:
A
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