Answer to Question #150253 in Physics for Esha

Question

a body with an electron of 15x10^-20 has a charge of 6x10^-10. determine the number of protons the body has

Answer 1

$$N=\frac{q}{e}\\N=\frac{6\cdot10^{-10}}{15\cdot10^{-20}}=4\cdot10^{9}$$