Question

One electron volt is equal to ______.

Options

• 1.6 × 10⁻¹⁷ J

• 6.1 × 10⁻¹⁹ J

• 1.6 × 10⁻¹⁹ J

• 1.6 × 10⁻¹⁰ J

Answer 1

One electron volt is equal to 1.6 × 10⁻¹⁹ J.

Explanation:

An electron volt is the energy gained by an electron moving through a potential difference of one volt.

Its value is 1 eV = 1.6 × 10⁻¹⁹ J.