A point charge of is fixed in air at a point O.

PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A point charge of

+6.0\,\mu\text{C}

is fixed in air at a point O. (i) Calculate the electric potential at a point P located

0.30\,\text{m}

from O. (ii) Determine the electric potential at another point Q that is

0.60\,\text{m}

from O. (iii) A test charge of

2.0\,\text{nC}

is moved from Q to P. Find the work done by an external agent in performing this transfer.