Question

Assertion (A) : The net magnetic flux coming out of a closed surface is always zero.

Reason (R) : Unlike poles of equal strength exist together

• A. Both A and R are true and R is the correct explanation of A.
• B. Both A and R are true and R is not correct explanation of A
• C. A is true, But R is false
• D. A is false, But R is true

Answer 1

Answer: (A)

Both A and R are true and R is the correct explanation of A.

The net magnetic flux coming out of a closed surface is always zero because magnetic monopoles does not exist.
There always be a south pole and north pole and due to that magnetic field of lines always forms a closed loop. This results in net magnetic flux to be zero.