A neutral point is obtained at the center of a vertical circular coil carrying current. The angle between the plane of the coil and the magnetic meridian is
Text Solution
Verified by ExpertsThe correct answer is:
D
Magnetic meridian is a vertical N-S plane, the earth’s magnetic field 
lies in it. (For more details see magnetism).
To obtain neutral point at the center of coil, magnetic field due to current and 
must cancel each other. Hence plane of the coil and magnetic meridian must be perpendicular to each other as shown
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