Magnetism and Matter - Result Question 4
7. A coil in the shape of an equilateral triangle of side is suspended between the pole pieces of a permanent magnet such that is in the plane of the coil. If due to a current in the triangle a torque acts on it, the side of the triangle is
[2005]
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 7. (b)
Solution:
- (b)
Also,
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