Question

calculate the potential difference of an energy source that provides 6.8joules for every milli coulomb of charge.​

Answer 1

Answer: V=6.8×10³V

Explanation:

Given:

Energy=6.8J

Q(charge)=10^-3C

Now, since E=Power.Time

And Power = V(pot. Diff.)×I(current)

Therefore, Power = V.Q.÷T

where I=Q÷T and T is time

So, E=V.Q/T.T

This cancels time and so E=Q.V

Hence, V=E/Q

V=6.8/10^-3

V=6.8×10³V

Or V=6800V