Question

A vertical straight conductor carries a current vertically upwards. A point  lies to the east of it at a small distance and another point  lies to the west at the same distance the magnetic field at  is :

A

greater than at

B

same as at

C

less than at

D

greater or less than at depending upon the strength of current

Easy
Updated on : 2022-09-05
Solution
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Correct option is B)

As per Biot Savart Law, Magnetic field at a point is inversely proportional to square of distance from the current carrying conductor. Therefore magnitude of magnetic field is same at both points P and Q, irrespective of their position from the conductor.

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