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Q.

Give the correct answer for the following statement 

A bar magnet is equivalent to:

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a

Current-carrying toroid

b

Current-carrying straight conductors

c

Current-carrying solenoid

d

Current-carrying circular coil

answer is C.

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Detailed Solution

A bar magnet and a current-carrying solenoid produce similar magnetic lines of force around them in the closed loop. Hence, a bar magnet can be modeled as equivalent to a solenoid.

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Give the correct answer for the following statement A bar magnet is equivalent to: