. A polythene piece rubbed with wool is found to have a charge of – 3.2×10⁻⁷C. Estimate the number of electrons transferred from which to which * (a) 2×10¹² from polythene to wool (b) 2×10¹² from wool to polythene (c) 51.2x 10²⁶ from wool to polythene (d) no electron transfer takes place
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When polythene is rubbed against wool, a number of electrons get transferred from wool to polythene. Hence, wool becomes positively charged and polythene becomes negatively charged. Therefore, the number of electrons transferred from wool to polythene is 1.87 × 1012.
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