In the block diagram of a simple rectifier circuit,from a variable $A.C.$ voltage,constant $D.C.$ voltage is obtained. The correct order of operation is

Explain the use of the junction diode as a half-wave rectifier by drawing a circuit and draw input and output waves.

Constant $DC$ voltage is required from a variable $AC$ voltage. Which of the following is the correct order of operation?

$A$ $220 \,V$ $AC$ supply is connected between points $A$ and $B$ as shown in the figure. What will be the potential difference $V$ across the capacitor?

In a full-wave $P-N$ junction diode rectifier, a load resistance of $1500 \ \Omega$ is used. No filter is used. Assume each diode has a forward resistance $R_f = 10 \ \Omega$ and reverse resistance $R_r = \infty$. When a sinusoidal voltage with a peak amplitude of $30 \ V$ and frequency $50 \ Hz$ is applied, calculate the $D.C.$ power output and $A.C.$ power input respectively.

$A$ half-wave rectifier is used to supply $100 \, V$ $dc$ to a load of $800 \, \Omega$. The diode resistance is $200 \, \Omega$. The $ac$ voltage required is :.......$V$