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In the fig the two parallel wires PQ and...

In the fig the two parallel wires PQ and ST are at 30 cm apart. The currents flowing in the wires are according to fig. The force acting over a length of 5m of the wires is-

(1) `5xx10^(-4) N`
(2) attraction
(3) `5xx10^(-8) N`
(4) repulsion

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