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Fill in the blank to complete the sentence :
Unlike poles of a magnet ___________ each other.
Fill in the blank to complete the sentence :
A freely suspended magnet rests in the geographic ___________ direction.
How do you account for the following fact?
Bar magnets lose their magnetism when heated strongly.
What is magnetic induction?
Explain a suitable experiment of magnetic induction?
A conductor B is charged by bringing another charged body A in contact 
What will be the charge gained by B?
How would you test whether a piece of steel was magnetised
(i) If you had a magnet?
(ii) If there was no magnet available.
Give scientific reason:
A ' cracking' noise may be heard on removing a nylon shirt, blouse, or stockings.
Give scientific reason:
A charge can be obtained on a rubbed ebonite rod held in the hand but not on a rubbed metal rod held in the hand.
