Question

The voltage(or electric potential) of battery determines
a.how much net electric charge is in the battery
b.how much work the battery can do on an electric charge
c.how much electric field is around
which one is correct? Thank you

Answer 1

Not a --- it determines the current flow
Not c --- cause that would determine external influence on the battery

Ans - b ---- the work it can do on a charge....precisely, voltage = electrical potential difference between positive and negative battery terminal

Answer 2

Votage=Energy per charge unit, so b is the right answer.

Answer 3

it is right.