Question

Would the answer be c?

The electrical potential 10 cm from an electron is:
a) 1.4x10^-8 V
b) 1.4x10^-10 V
c) 1.4x10^-7 V
d) 1.2x10^-4 V

Answer 1

k Q/r
9*10^9 * 1.6*10^-19/10^-1

14.4 *10^-9 = 1.44 *10^-10

Answer 2

14.4 *10^-9 = 1.44 *10^-8