Q. A dry cell does 7.40 J of work through chemical energy to transfer 3.80 C between the terminals of the cell. What is the electric potential between the two terminals?
Q. A capacitor is formed by placing a 20cm long charge carrier charged to +10nC placed 5cm away from and parallel to a 20cm long charge carrier charged to -10nC. Find the electric field at 1cm, 2cm, 3cm, and 4cm along the axis of symmetry.