Question

A polythene piece rubbed with wool is found to have a negative charge of 3.0X107. Calculate the number of electrons transferred.​

Answer 1

Answer:-

• Charge=Q=3×10^7C

We know

$\boxed{\sf 1C=6.24\times 10^{18}e^-}$

$\\ \sf\longmapsto 3\times 10^7C=3\times 10^7\times 6.24\times 10^{18}$

$\\ \sf\longmapsto 3\times 10^7C=3\times 6.24\times 10^{18+7}$

$\\ \sf\longmapsto 3\times 10^7C=18.7\times 10^{25}$

$\\ \sf\longmapsto 3\times 10^7C=1.87\times 10^{26}e^-$

Hence

$\underline{\footnotesize{\sf 1.87\times 10^{26}e^-\:transferred.}}$