Question
Physics Question on Magnetic Effects of Current and Magnetism
Magnetic moment of a thin bar magnet is ‘M’. If it is bent into a semicircular form, its new magnetic moment will be________.
Fill in the blank with the correct answer from the options given below.
A
M/π
B
M/2
C
M
D
2M/π
Answer
M
Explanation
Solution
Bending the bar magnet into a semicircular form does not change its magnetic moment because it depends on the pole strength and effective length.