Question

Select the correct option in Questions 1 and 2.
Which of the following cannot be charged easily by friction?
(a) A plastic scale
(b) A copper rod
(c) An inflated balloon
(d) Awoollen cloth.
When a glass rod is rubbed with a piece of silk cloth the rod
(a) and the cloth both acquire positive charge.
(b) becomes positively charged while the cloth has a negative charge.
(c) and the cloth both acquire negative charge.
(d) becomes negatively charged while the cloth has a positive charge.​

Answer 1

Answer:

1. Which of the following cannot be charged easily by friction? Ans..(d) A woollen cloth. Explanation: Only non-conducting materials can be easily charged by friction.

Ans. 2 When the glass rod is rubbed with silk clothes, glass quickly loses electrons, and silk takes electrons out of the glass rod. So after rubbing, the glass rod becomes positively charged and the silk gets negative charge.

Answer 2

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