Define the term
dielectric constant. Give its S.I.unit.
In the figure, take the potential at B to be zero.
(a) What are the potentials at the point A and C? (b) At which point D of the wire AB, the potential is equal to the potential at C? (c) If the points C and D are connected by a wire, what will be the current through it? (d) If the 4V battery is replaced by a 7.5 V battery, what would be the answers of parts (a) and (b)?