Question

Is it possible that an object have a charge of -4. 8×10^-15C?Give the reason.​

Answer 1

To find:

If it's possible to have a charge of -4.8 × 10^(-15) C or not ?

Calculation:

The minimum amount of charge that can be held by a body is equal to the charge of a single electron.

So, C_(min) = -1.6 × 10^(-19) C.

Now, the other amount of charges that can be held by any body will always be multiples of this minimum amount of charge (i.e. charge of a single electron).

$\rm \therefore \: no. \: of \: {e}^{ - } = \dfrac{ - 4.8 \times {10}^{ - 15} }{ - 1.6 \times {10}^{ - 19} }$

$\rm \implies \: no. \: of \: {e}^{ - } = \dfrac{ 4.8 \times {10}^{ - 15} }{ 1.6 \times {10}^{ - 19} }$

$\rm \implies \: no. \: of \: {e}^{ - } = 3 \times {10}^{4}$

$\rm \implies \: no. \: of \: {e}^{ - } = 3000$

Since, the number of electron is a whole number, this charge is possible !

Answer 2

Yes, it is possible to have this kind of charge as it is whole number multiple of charge of a single electron.

Just divide the charge with charge of electron. If the number is whole number, it's possible