A glass rod is rubbed with silk and was to found to have 5micro coulomb of charge. How many electrons got transfered and from which material
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Solution
The electron will transfer from glass to the silk 1 electron have a charge of 1.6×10^-19 C charge so let n electrones give a charge of 5 micro C so n×1.6×10^-19=5×10^-6 n=(5/1.6) ×19^13 n=3.125×10^13 electrones so 3.125×10^ 13 electrones will transfer from glass rod to silk