AP EAMCET · PHYSICS · Magnetic Effects of Current
A wire of length carrying a current is bent in the form of a circle. Magnitude of its magnetic moment is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
The magnetic moment of a current loop can be defined as the product of the current flowing in the loop and the area of the circular loop, M=IA When a wire is bent to form a circular loop then its area is A=πL2π2 Therefore, magnitude of its magnetic moment is…
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