A magnetic needle is kept in a non­uniform magnetic field. It experiences

  • Option 1)

    a force and a torque

  • Option 2)

    a force but not a torque

  • Option 3)

    a torque but not a force

  • Option 4)

    neither a force nor a torque

 

Answers (1)

As we learnt in 

Behaviour in a non- uniform magnetic field -

These are strongly attracted in an external magnetic field (in ferromagnetic substance)

- wherein

 

 

A force and a torque act on a magnetic needle kept in a non­uniform magnetic field.


Option 1)

a force and a torque

Correct

Option 2)

a force but not a torque

Incorrect

Option 3)

a torque but not a force

Incorrect

Option 4)

neither a force nor a torque

Incorrect

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