List of top Physics Questions on Simple diode circuits

Three identical liquid drops, each carrying the same charge, coalesce to form a single drop. The ratio of the potential of the large drop and the smaller drop is \( 3^{1/3} \). Then, \( N \) is:

In the circuit shown, assuming the threshold voltage of the diode is negligibly small, then the voltage \( V_{AB} \) is correctly represented by: