The $P-N$ junction diode acts as a rectifier in the circuit shown below. An alternating current source is connected to the circuit. The current in the resistor $(R)$ can be observed as follows. Which of the following is correct?

If in a $p-n$ junction circuit,a square input signal of $5\,V$ is applied as shown,then the output across $R_L$ will be:

In the diagram,the input is across the terminals $A$ and $C$ and the output is across the terminals $B$ and $D$,then the output is

Statement-$I$: To get a steady $DC$ output from the pulsating voltage received from a full wave rectifier,we can connect a capacitor across the output parallel to the load $R_L$.
Statement-$II$: To get a steady $DC$ output from the pulsating voltage received from a full wave rectifier,we can connect an inductor in series with $R_L$.
In the light of the above statements,choose the most appropriate answer from the options given below:

The output sinusoidal current versus time curve of a rectifier is shown in the figure. The average value of output current in this case is

In a rectifier circuit,the filter circuit: