Q.

The magnetic field at the centre of the current carrying coil is

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a

directed normal to plane of the coil

b

radial from centre of the coil

c

directed parallel to plane of the coil

d

Zero

answer is A.

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Detailed Solution

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Using right hand thumb rule, we can find the direction of the magnetic field at the centre of the current carrying circular coil. Magnetic field is perpendicular to the plane of the coil at its centre.

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