Electromagnetic Induction and Alternating Current 1 Question 8

####8. A circular loop of radius R, carrying current I, lies in xy plane with its centre at origin. The total magnetic flux through xy plane is

(1999,2M)

(a) directly proportional to I.

(b) directly proportional to R.

(c) inversely proportional to R.

(d) zero.

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Answer:

Correct Answer: 8. (d)

Solution:

  1. Total magnetic flux passing through whole of the xy plane will be zero, because magnetic lines form a closed loop. So, as many lines will move in z direction same will return to +z direction from the xy plane.


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