A polythene piece rubbed with wool is found to have negative charge of `3 xx 10^-7 C`. Estimate the number of electrons transferred.A. `1.8xx10^(15)`B. `1.8xx10^(12)`C. `1.2xx10^(11)`D. `1.2xx10^(10)`

A polythene piece rubbed with wool is found to have negative charge of

1.	A polythene piece rubbed with wool is found to have negative charge of `3 xx 10^-7 C`. Estimate the number of electrons transferred.A. `1.8xx10^(15)`B. `1.8xx10^(12)`C. `1.2xx10^(11)`D. `1.2xx10^(10)`
Answer» Correct Answer - B Here, total charge transferrred, `q=-3xx10^(-7)C` Charge on an electron, `e=-1.6xx10^(-19)C` From quantisation of charge, q = ne Therefore, number of electrons transferred, `n=(q)/(e)=(-3xx10^(7))/(-1.6xx10^(-19))` Number of electrons, `n=1.8xx10^(12)`

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A polythene piece rubbed with wool is found to have negative charge of `3 xx 10^-7 C`. Estimate the number of electrons transferred.A. `1.8xx10^(15)`B. `1.8xx10^(12)`C. `1.2xx10^(11)`D. `1.2xx10^(10)`

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