1. 1 coulomb = 6.25 × 1018 electrons, 1 Joule = ……..eV2. What is

1.	1. 1 coulomb = 6.25 × 1018 electrons, 1 Joule = ……..eV2. What is meant by 1 eV3. Which is bigger unit J or eV? Justify for your answer.
Answer» 1. lev =1.6 × 10^-19J ∴ 1J = \(\frac{1}{1.6\times10^{-19}}\)ev 1 J = 6.25 × 10¹⁸eV. 2. 1 ev is the energy acquired by an electron, when it is accelerated through a potential difference of one volt. 3. Joule is bigger unit, 1J = 6.25 × 10¹⁸eV.

1. 1 coulomb = 6.25 × 1018 electrons, 1 Joule = ……..eV2. What is meant by 1 eV3. Which is bigger unit J or eV? Justify for your answer.

Answer»

1. lev =1.6 × 10^-19J

∴ 1J = \(\frac{1}{1.6\times10^{-19}}\)ev 1 J = 6.25 × 10¹⁸eV.

2. 1 ev is the energy acquired by an electron, when it is accelerated through a potential difference of one volt.

3. Joule is bigger unit, 1J = 6.25 × 10¹⁸eV.