In case 'A', a plastic comb is held near a very thin stream of water. In case 'B', the same comb, after being used to comb hair, is held exactly in the same position. (a) What happens to the water in case ‘A’ and in 'B'? (b) What is different about the comb in case 'B'? (c) What has caused the comb to change its behaviour? (d) Why did the stream get deflected in 'B'and not in ‘A’?

In case 'A', a plastic comb is held near a very thin stream of water.

1.	In case 'A', a plastic comb is held near a very thin stream of water. In case 'B', the same comb, after being used to comb hair, is held exactly in the same position. (a) What happens to the water in case ‘A’ and in 'B'? (b) What is different about the comb in case 'B'? (c) What has caused the comb to change its behaviour? (d) Why did the stream get deflected in 'B'and not in ‘A’?
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