MHT CET 2026 Physics question
A thin circular wire carrying current 'I' has magnetic moment 'M'. The shape of the wire is changed to a square and it carries the same current. It will have magnetic moment M The ratio 'M' to 'M' is
Answer: (B)
Solution
The length of the wire is fixed. As a circle: so and . As a square: side , area and . Then $ =
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account