1.

On reversing the direction of current in a wire, the magnetic field produced by it: (a) gets reversed in direction (b) increases in strength (c) decreases in strength (d) remains unchanged in strength and direction.

Answer»

On reversing the direction of current in a wire, the magnetic field produced by it:
(a) gets reversed in direction
(b) increases in strength
(c) decreases in strength
(d) remains unchanged in strength and direction.



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