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Two parallel conducting plates, each of ...

Two parallel conducting plates, each of area A, are separated by a distance d. Now, the left plate is given a positive charge Q. A positive charge q of mass m is released from a point near the left plate. Find the time taken by the charge to reach the right plate.

A

`(sqrt(3dmepsilon_0A)/(qQ))`

B

`(sqrt(4dmepsilon_0A)/(qQ))`

C

`(sqrt(2dmepsilon_0A)/(qQ))`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B

`E=(Q)/(2Aepsilon_(0))`
`a=(qE)/(m)=(qQ)/(2Amepsilon_(0))`
`d=(1)/(2)at^(2),t=sqrt((2d)/(a))=sqrt((2d2Amepsilon_(0))/(qQ))`
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