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Potential energy of two equal negative point charges `2muC` each held 1 m apart in air is

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Potential energy of two equal negative point charges `2muC` each held 1 m apart in air is
A. 2 J
B. 2 eV
C. 4 J
D. 0.036 J
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Correct Answer - D
`"As, PE"=(1)/(4pi epsilon_(0)).(q_(1)q_(2))/(r)=(9xx10^(9)(2xx10^(-6))^(2))/(1)=0.036J`
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