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Assertion: We cannot think of magnetic f...

Assertion: We cannot think of magnetic field configuration with three poles.
Reason: A bar magnet does exert a torque on itself due to its own field.

A

Statement-1 is True, Statement-2 is True , Statement-2 is a correct explanation for Statement-3

B

Statement-1 is True, Statement-2 is True , Statement-2 is NOT a correct explanation for Statement-3

C

Statement-1 is False, Statement-2 is True

D

Statement-1 is True, Statement-2 is True , Statement-2 is a correct explanation for Statement-3

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Assertion (A): The magnetic field configuration with 3 poles is not possible. Reason (R): No torque acts on a bar magnet itself due to its own field.

(a) What happens if a bar magnet is cut into two pieces (i) transverse to its length (ii) along its length? (b) What happens if an iron bar magnet is melted? Does it retain its magnetism? (c) A magnetized needle in a uniform magnetic field experiences a torque but no net force. However, an iron nail near a bar magnet experiences a force of attraction in addition to a torque, explain. (d) Must every magnetic field configuration have a north pole and a south pole? What about the field due to a toroid? (e) Can you think of magnetic field configuration with three poles? (f) Two identical looking iron bars A and B are given, one of which is definitely known to be magnetized. How would one ascertain whether or not both are magnetized? If only one is magnetized how does one ascertain which one? Use nothing else but the bars A and B.

A magnetic field cannot exert any force on a

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