A set of charged plates have an area of 5.10*10^-3 m^2 and
separation 1.42*10^-5 m. How
much charge must be placed on
the plates to create a potential
difference of 125 V across them?
(The answer is *10^-7 C. Just fill in
the number, not the power.)

Inner peace.. jk it's  a stable electron configuration

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.