Question

.A glass rod when rubbed with a piece of fur acquires a charge of magnitude 3.2 µC. Then the number of electrons transferred is ______.

Answer 1

Answer:

2×10raised to the power 13 electrons

Answer 2

A glass rod when rubbed with a piece of fur acquires a charge of magnitude 3.2 µC. Then the number of electrons transferred is  2 x $10^{13}$

In the given question charge is acquired by rubbing a glass rod with a piece of fur. By this process, the glass rod will acquire a static charge by the transfer of electrons.

The magnitude of charge acquired = 3.2 µC = 3.2 x $10^{-6}$ C

Now we know that

The charge on an electron also known as elementary charge = 1.6 x $10^{-19}$ C

Therefore the number of electrons =  3.2 x $10^{-6}$ /  1.6 x $10^{-19}$

= 2 x $10^{13}$

Therefore the number of electrons transferred is  2 x $10^{13}$