Question

Observation : Fill in the (1) When the glass rod comes in contact with the metal disc of the electroscope, the gold leaves (2) When the ebonite rod comes in contact with the metal disc of the electroscope, the gold leaves (3) When the glass rod is rubbed over the silk cloth and comes in the contact with the metal disc, the gold leaves (4) When the ebonite rod is rubbed over the wool and comes in the contact with the metal disc, the gold leaves​

Answer 1

Answer:

A glass rod rubbed with silk will acquire positive charge, so when it is brought near the disc of electroscope then the leaves will attract each other and hence contract. b) A ebonite rod under the above circumstances will get negatively charged and hence as per the above observation the leaves with dilate. c) If the metal rod is electrically neutral then, nothing will happen to the leaves.

Explanation:

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Answer 2

Explanation:

How do the nostrils contribute to the process of breathing