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 -2024 

Solution:                
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 :

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In the above diagram a strong bar magnet is moving towards solenoid2 from solenoid1. The direction of induced current in solenoid1 and that in solenoid2, ,respectively , are through the directions:
    


                                                 NEET-2024