Qstnid -I-4-compare The Direction Of The Magnetic Field Inside A Solenoid With That Of The Field There If The Solenoid Is Replaced By Its Equivalent Combination Of North Pole And South Pole. - 36: Permanent Magnets

with Solutions -

#4
Compare the direction of the magnetic field inside a solenoid with that of the field there if the solenoid is replaced by its equivalent combination of north pole and south pole.
Ans : The direction of the magnetic field is the same in both cases, that is, inside a solenoid and inside a bar magnet. In a solenoid, magnetic field lines are directed from one end to the other internally and externally, so they are in the equivalent combination of north and south poles (as shown in figure).

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