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Two long straight parallel wires P and Q are kept at a separation of 1 m. Current in P is 3A and that in Q is 1A. Then distance of the point from P where the magnetic induction will be zoro is
detailed solution
Correct option is C
(3)The point where the magnetic induction is zero, must lie between P and Q and in the plane containing P and Q. If x be the distance of the point from P, then μ0 ×32πx − μ0 ×12π1−x=0⇒ 3−3x=x ⇒ x=34m.Talk to our academic expert!
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The magnitude of magnetic field at a point having perpendicular distance 50 mm from a long straight conducting wire carrying a current of 3A is
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