For a half-wave rectifier, the load resistance is $R_L = 2 \, k\Omega$ and the $P-N$ junction diode resistance is $R_d = 2 \, k\Omega$. The rectification efficiency is .... $\%$.

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

$A$ diode detector is used to detect an amplitude modulated wave of $60\%$ modulation by using a condenser of capacity $250\, pF$ in parallel with a load resistance $100\, k\Omega$. Find the maximum modulated frequency which could be detected by it.

$A$ diode is connected to $220 \, V$ $(rms)$ $ac$ in series with a capacitor as shown in the figure. The voltage across the capacitor is..... $V$

The value of the form factor in the case of a half-wave rectifier is

Explain the use of a junction diode as a full-wave rectifier by drawing a circuit diagram and show the input and output waveforms.