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An inflated rubber balloon is rubbed with a woollen cloth whereas a ballpoint pen refill is rubbed with a polythene bag. Which of these will get positively charged? A. Inflated rubber balloon B. Woollen cloth C. Ballpoint pen refill D. Polythene bag (a) A and B (b) B and C (c) A and D (d) B and D |
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Answer» An inflated rubber balloon is rubbed with a woollen cloth whereas a ballpoint pen refill is rubbed with a polythene bag. Which of these will get positively charged? A. Inflated rubber balloon B. Woollen cloth C. Ballpoint pen refill D. Polythene bag (a) A and B (b) B and C (c) A and D (d) B and D |
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