(b) Give the sign of the potential energy difference of a small negative
charge between the points Q and P; A and B (c) Give the sign of the work done by the field in moving a small
positive charge from Q to P (d) Give the sign of the work done by the external agency in moving
a small negative charge from B to A (e) Does the kinetic energy of a small negative charge increase or
decrease in going from B to A