A 2muC charge and a-0.01 mC are kept at ...

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

5 N

2 N and 6 N

3 N

4 N

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The correct Answer is:

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)^(2))`
`F=-2N`

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

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