In the case of forward biasing of a $PN-$ junction,which one of the following figures correctly depicts the direction of flow of majority charge carriers?

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

The length of a germanium rod is $0.925 \ cm$ and its area of cross-section is $1 \ mm^2$. If for germanium $n_i = 2.5 \times 10^{19} \ m^{-3}$,$\mu_h = 0.19 \ m^2/V\cdot s$,and $\mu_e = 0.39 \ m^2/V\cdot s$,then the resistance of the rod is:

Explain the forward and reverse characteristics of the $p-n$ junction diode by drawing the circuit and graph.

$A$ waveform is applied to the following circuit. Assuming an ideal diode and ${R_1} = {R_2}$, which of the following output waveforms will be produced?

Three identical p-n junction diodes $D_1$, $D_2$ and $D_3$ are connected across a battery as shown in the figure. If the widths of the depletion regions of $D_1$, $D_2$ and $D_3$ are $W_1$, $W_2$ and $W_3$, respectively, then the correct option is: