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A given charge situated at a certain di...

A given charge situated at a certain distance from a short electric dipole in the end on position experience a force F. If the distance of the charge is doubled, the force acting on the charge will be

A

`E/4`

B

`E/8`

C

8E

D

4E

Text Solution

Verified by Experts

The correct Answer is:
B
`E//8`
Explanation: The electric field at charge Q placed at distance r from a electric dipole in the end-on position is given by
`vecE=1/(4piepsi_0)"."(2P)/r^3`
`vecEprop1/r^3`
if distance is doubled, then `E.=E/8`
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