Electro Magnetic Induction And Alternating Currents Question 313
Question: A circular loop of radius R carrying current I lies in x-y plane with its centre at origin. The total magnetic flux through x-y plane is [IIT-JEE 1999]
Options:
A) Directly proportional to I
B) Directly proportional to R
C) Directly proportional to $ R^{2} $
D) Zero
Show Answer
Answer:
Correct Answer: D
Solution:
Circular loop behaves as a magnetic dipole whose one surface will be N-pole and another will be S-pole. Therefore magnetic lines a force emerges from N will meet at S. Hence total magnetic flux through x-y plane is zero.
