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A circular coil of 5 turns and of 10 cm ...

A circular coil of 5 turns and of 10 cm mean diameter is connected to a voltage source. If the resistance of the coil is `10Omega`, the voltage of the source so as to nullify the horizontal component of earth's magnetic field (H=0.314gauss)`, at the center of the coil should be

A

6V, plane of the coil normal to the magnetic meridian

B

2V, plane of the coil normal to the magnetic meridian

C

6V, plane of the coil along the magnetic meridian

D

2V, plane of the coil along the magnetic meridian

Text Solution

Verified by Experts

The correct Answer is:
A
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