A point charge of is placed in insulating oil of relative permittivity 2.5.

PHYSICS · Multi-part · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential

Problem

A point charge of

+5\,\text{nC}

is placed in insulating oil of relative permittivity 2.5. (i) Calculate the electric potential at a point

30\,\text{cm}

from the charge. (ii) Calculate the electric potential at a point

60\,\text{cm}

from the same charge. (iii) Find the potential difference between the two points (near minus far).