Question

Magnetic moment for a solenoid and corresponding bar magnet is

• A. equal for both
• B. more for solenoid
• C. more for bar magnet
• D. none of these

Answer 1

Answer: (A)

Since a bar magnet and a corresponding solenoid produce similar magnetic fields. Hence the magnetic moment of a bar magnet is equal to the magnetic moment of an equivalent solenoid that produces the same magnetic field.