1.

There exists a uniform electric field E =4 xx 10^(5) Vm^(-3) directed along negative x-axis such that electric potential at origin is zero. A charge of - 200 muC is placed at origin and a charged of + 200 mu C is placed at a (3 m, 0) . The electrostatic potential energy of the system is

Answer»

120 J
`-120` J
`-240` J
ZERO

ANSWER :A


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