Question

A proton (being 1836 times heavier than an electron) gains how much energy when moving through a potential increase of one volt?

Answer 1

Step-by-step explanation:

Below is an attachment containing the solution.

Answer 2

1.6*10⁻¹⁹ J = 1 eV

Step-by-step explanation:

• As the potential is defined as energy per unit charge, the increase in the electrical potential energy of a proton, can be written as follows:

`\Delta U_(e) = e*\Delta V`

• where e = 1.6*10⁻¹⁹ C, and ΔV = 1 V = 1 J/C

⇒
`\Delta U_(e) = e*\Delta V = 1.6e-19 C* 1.0 V = 1.6e-19 J = 1 eV`

• As the electrical potential energy only depends on the charge and the voltage, the mass has no influence.