In forward bias,the width of the potential barrier in a $P-N$ junction diode:

For the diode,the characteristic curves are given at different temperatures. The relation between the temperatures is

The magnitude of the diffusion current in a $p-n$ junction is smaller than the magnitude of the drift current:

State the methods of connection of $p-n$ junction.

The figure shows a circuit in which three identical diodes are used. Each diode has a forward resistance of $20\,\Omega$ and an infinite backward resistance. Resistors $R_1 = R_2 = R_3 = 50\,\Omega$. The battery voltage is $6\,V$. The current through $R_3$ is.....$mA$.

What is the current through the battery in the circuit shown below (in $\text{A}$)?