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A magnetic needle free to rotate in a ho...

A magnetic needle free to rotate in a horizontal plane is placed at the centre of a circular current-carrying coil whose axis is perpendicular to the magnetic meridian at that place. It is also known that the magnetic declination at this place is zero and in this condition, the magnetic needle is pointing towards conditions, the magnetic needle is pointing towards the north-west. Now, if we reverse the direction of current in the coil, then the magnetic needle will

A

point north - west

B

point north-east

C

point south-east

D

point south-west

Text Solution

Verified by Experts

The correct Answer is:
B
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