NEET Physics: Questions 669 - 672 of 2099
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Question number: 669
Question number: 670
Torque on the coil is maximum, when coil is suspended in a radial magnetic field.
The torque tends to rotate the coil on its own axis.
|a.||Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ|
|b.||Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ|
|c.||Ꭺ is true but Ꭱ is false|
|d.||Both Ꭺ and Ꭱ are false|
Question number: 671
A rectangular loop carrying a current i is placed in a uniform magnetic field B, The area enclosed by the loop is A. If there are n turns in the loop, the torque acting on the loop is given by
Question number: 672
A wire of length L carrying current I is bent into a circle of one turn. The field at the center of the coil is B 1, A similar wire of length L carrying current I is bent into a square of one turn. The field at its center is B 2. Then which of the followings are not correct?
(1) B 1 > B 2
(2) B 1 = B 2
(4) B 1 < B 2
Select the correct answers and mark it according to the following codes:
1 and 3 are correct
1 and 2 are correct
2 and 4 are correct
1, 2 and 3 are correct