Take a used ballpen refill and rub it vigorously with a piece of polythene. Which of the following observation is incorrect if you bring it close to small. pieces of paper, dry leaf, husk or mustard seed?
A. The ball pen refill attracts small pieces of paper and dry leaf.
B. The ball pen refill attracts husk and mustard seeds.
C. The ball pen refill acquires a small electric charge.
D. The polythene is not charged at all.
Answer:D
Take a used ballpen refill and rub it vigorously with a piece of polythene. Which of the following observation is incorrect if you bring it close to small. pieces of paper, dry leaf, husk or mustard seed?
A. The ball pen refill attracts small pieces of paper and dry leaf. B. The ball pen refill attracts husk and mustard seeds. C. The ball pen refill acquires a small electric charge. D. The polythene is not charged at all.