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Subject :NSO    Class : Class 7

Observe the given figures carefully. Figure (i) shows an iron bar being stroked by a bar magnet and figure (ii) shows an iron bar which is inserted into a solenoid. State the polarities at E, F, G and H.


I am not able understand this question.

Ans 1:

Class : Class 8
its "a"

Ans 2:

Class : Class 7
Correct Option is A

Ans 3:

Class : Class 7
if you magnetise a material for eg if you magnetise a piece of iron with the south pole of a magnet , the side which you are magnetising will be north

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