Question

the number of electrons in excess to number of protons on the body is 2.5 ×10 power of 17 the charge of body is​

Answer 1

The excess no of electrons in the body is 2.5x10^17

So the charge carried by them will be

2.5x10^17 x 1.6x10^-19

=>3.0x10^-2

So the charge of the body will be 3.0x10^-2 C