Suppose an isolated north pole is kept at the centre of a circular loop carrying a electric current i. The magnetic field due to the north pole at a point on the periphery of the wire is B. The radius of the loop is a . The force on the wire is

Suppose an isolated north pole is kept at the centre of a circular loo

1.	Suppose an isolated north pole is kept at the centre of a circular loop carrying a electric current i. The magnetic field due to the north pole at a point on the periphery of the wire is B. The radius of the loop is a . The force on the wire is
Answer» Nearly `2 pi a I B` perpendicular to the PLANE of the wire `2pi a I B` in the plane of the wire `pi aiB` along the AXIS of the wire ZERO Answer :A

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Suppose an isolated north pole is kept at the centre of a circular loop carrying a electric current i. The magnetic field due to the north pole at a point on the periphery of the wire is B. The radius of the loop is a . The force on the wire is

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