Which expression gives the change in electric potential energy of a point charge that…

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Which expression gives the change in electric potential energy

\Delta U

of a point charge

q

that is moved between two locations with electric potentials

V_1

and

V_2

? (a)

\Delta U=\dfrac12\,q\,(V_2-V_1)

(b)

\Delta U=q\,(V_1-V_2)

(c)

\Delta U=q\,(V_2-V_1)

(d)

\Delta U=q\,|\,V_2-V_1\,|