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A 2 muc charge and a -0.01 mCare kept at...

A 2 `muc` charge and a -0.01 mCare kept at a distance of 30 cm from each other. The force between them will be.

A

5 N

B

2 N

C

3 N

D

4 N

Text Solution

Verified by Experts

The correct Answer is:
B
Given `q_(1)=2xx10^(-6)C`
`q_(2)=-0.01xx10^(-3) C and r=0.3 m`
We have `F=9xx10^(9)xx(q_(1)q_(2))/(r^(2))`
`F=(9xx10^(9)xx2xx10^(-6)xx(0.01xx10^(-3)))/((0.3)^(3))`
`F=-2N`
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