At a point 0.20 m from an isolated point charge in air

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

Problem

At a point 0.20 m from an isolated point charge in air, the electric potential is +450 V. Calculate the magnitude of the charge. (a)

-10\,\text{nC}

(b)

+2\,\text{nC}

(c)

+10\,\text{nC}

(d)

+100\,\text{nC}