PHYSICS · Multi-part · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance
Problem
In an experiment, a charge of −300μC is moved from point A to point B in an external electric circuit. The potential at B is 15 V higher than at A.
(i) What does the negative sign of the charge signify?
(ii) Determine the work done in moving the charge from A to B. Express your answer in millijoules.
(iii) State whether the work done by the external agent is positive, negative, or zero, and justify your answer on the basis of your calculation.