A conducting loop carrying a current I is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency :- [WITH REASON]
(A) contract
(B) expand
(C) move to positive X-axis
(D) move to negative X-axis
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Answer:
Option B
Expand
Explanation:
The conducting loop will expand as a force is directed outwards diametrically in the loop which will make it to expand.
By using palm rule we can say that force will be outward as F = i (l × B).
Put your right thumb in the direction of first vector (here l) and direct your fingers toward the second vector ( B ) in the cross product.
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