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Four charges are placed each at a distan...

Four charges are placed each at a distance `'alpha'` from origin. The dipole moment of configuration is

A

`2qa hat(j)`

B

`3 qa hat(j)`

C

`2 aq hat(i)`

D

None

Text Solution

Verified by Experts

The correct Answer is:
A

dipole moments by -2q and +2q cancel each other so
`vecP_(net)=2` (aq) along y-axis , `vecP_(net)=2aq hat j`
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