Two parallel wires P and Q carry electric currents of 10 A and 2A respectively in mutually opposite directions. The distance between the wires is 10 cm. If the wire P is of infinite length and wire Q is 2m long, then the force acting Q will be –
Text Solution
Verified by ExpertsThe correct answer is:
B
F = 
= 2 × 10 –7 × 
= 8 × 10 –5 N
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