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There are three charges Q(1) columb Q(2)...

There are three charges `Q_(1)` columb `Q_(2)` columb and `Q_(3)` columb. `Q_(2)` and `Q_(3)` are fixed at positive (0 0) and (30 0) respectively.Now `Q_(1)` moves in circular path in x -y plane of radius 40 cm with help of external agent starting from (0 40) about origin then work done by external agent is till `Q_(1)` crosses x axis (40 0) given co-ordinates are in centimeters: 1) `(Q_(1)Q_(3))/(4 pi epsilon_(0))` joule 2) `(Q_(1)Q_(3))/(2 pi epsilon_(0))` joule 3) `(2Q_(1)Q_(3))/(pi epsilon_(0))` joule 4) `(2Q_(1)(Q_(2)+Q_(3)))/(pi epsilon_(0))` joule

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