Magnetic field due to currentHard
Question
A straight wire carries a current vertically upwards. A point P lies to the east of it at a small distance and another point Q lies to the west at the same distance. The magnetic field at P is (consider earth field) :-
Options
A.Greater than at Q
B.Same as at Q
C.Less than at Q
D.Greater or less than at Q, depending upon the strength of current
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