Find the current $i$ in the circuit.

The figure shows two diagrams in which a diode and a resistance are connected. Out of the following statements,which one is $TRUE$?

The $P-N$ junction depletion layer is made up of .......

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A:$ Diffusion current in a $p-n$ junction is greater than the drift current in magnitude if the junction is forward biased.
Reason $R:$ Diffusion current in a $p-n$ junction is from the $n$-side to the $p$-side if the junction is forward biased.
In the light of the above statements,choose the most appropriate answer from the options given below:

$A$ circuit is arranged as shown in the figure. The output voltage ${V}_{0}$ is equal to $\ldots \ldots \text{ V}$.

In the given figure,three silicon diodes are connected in series. What voltage at point $X$ will make all three diodes forward-biased?