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Two charges 5mu C and 4mu C are separate...

Two charges `5mu C and 4mu C` are separated by a distanc 20 cm in air. Work to be done to decrease the distance to 10 cm is

A

1.8 j

B

0.45 j

C

2.7 j

D

0.9 j

Text Solution

Verified by Experts

The correct Answer is:
D
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