Question

a charge of 2e falls from the potential difference of 2V. What will be the energy released in electron volt?

Answer 1

Answer:

What is the mass of the particle? Is the particle within the gravitational field of the Earth? If no gravitational force needs to be considered, the energy acquired will simply be 2 x 3 eV = 6eV. You can convert that into Joules by multiplying by the charge on an electron.