Two ideal diodes are connected to a battery as shown in the circuit. The current supplied by the battery is: (in $A$)

The depletion layer in the $P-N$ junction region is caused by

The current $i$ in the network is: (in $A$)

Consider a $p-n$ junction as a capacitor, formed with $p$ and $n$-materials acting as thin metal electrodes and depletion layer width acting as separation between them. Basing on this, assume that an $n-p-n$ transistor is working as an amplifier in $CE$ configuration. If $C_1$ and $C_2$ are the base-emitter and collector-emitter junction capacitances, then :

In the case of forward biasing of a $p-n$ junction diode,which one of the following figures correctly depicts the direction of conventional current (indicated by an arrow mark)?

Find the current $i$ in the circuit.