Question
An iron bar of length L has magnetic moment M. It is bent at the middle of its length such that the two arms make an angle 60^ with each other. The magnetic moment of this new magnet is :
NEET
Physics
Magnetic Effects of Current
2024
NEET 2024
NEET Physics Question (2024) — Solution
Options
- A. M 2
- B. 2 M
- C. M 3
- D. M
Answer
A. M 2
Step-by-step solution
aligned & I=2 I 2 30^ \\ & = 1 2 \\ & M^ =m / / 2 \\ & =M / 2 aligned
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