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The electrostatic potential energy of tw...

The electrostatic potential energy of two point charges, `1muC` each, placed 1 metre apart in air is :

A

`9 xx 10^(3)J`

B

`9 xx 10^(9)J`

C

`9 xx 10^(-3)J`

D

`9 xx 10^(-3)eV`

Text Solution

Verified by Experts

The correct Answer is:
C
Electrostatic potential energy,
`U=(1)/(4pi epsilon_(0)) .(q_(1)q_(2))/(r )`
`=9 xx 10^(9) xx (1xx 10^(-6)xx 1 xx 10^(-6) )/(1)`
`=9 xx 10^(-3)J`
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