Question

A proton has a positive electric charge of q = 1.6 × 10–19 coulombs. What is the electric potential at a point 5.3 × 10–11 m from the proton?

4.4 * 10 ^-18

2.7 * 10 ^1

3.0 * 10 ^-9

5.1 * 10 ^1

Answer 1

2.7 × 101 volts is the correct awnser

Answer 2

Answer: 27.1 Volts.

The formula of potential difference is,

`V = (kq)/(r)`

The charge on the proton is,
`q = 1.6 * 10^(-19) C`.

The distance of the point of observation from proton is,
`r = 5.3 * 10^(-11) m`

The coulomb's constant,
`k = 9 * 10^9 V/C.m`

The potential is,

`image`