Question

Q1 . Read the statement carefully and choose the correct alternative.

a) Both Assertion and Reason are correct and the reason is the correct explanation of assertion.
b) The Assertion and Reason are correct but the reason is not the correct explanation of assertion.
c) Assertion is true but the reason is false.
d) The statement of Assertion is false but the Reason is true.

ASSERTION : On freely suspending a current carrying solenoid it comes to rest in N – S direction just like a bar magnet.
REASON : One end of current carrying straight solenoid behaves as a north pole and the other end as south pole.
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Answer 1

Answer:

a) Both Assertion and Reason are correct and the reason is the correct explanation of assertion.

Explanation:

The current carrying solenoid when suspended freely, will rest along the N-S direction. The reason is that it will behave like a bar magnet, with N polarity at one face of solenoid and S polarity at the other face, depending upon the direction of current in the solenoid.

Current carrying solenoid behaves like a bar magnet. At end in which direction of current is anticlockwise, behaves as north pole and where current is in clockwise direction behaves as south pole. Therefore on suspending it freely, set it self in North-South direction as bar magnet does.