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?

In a full-wave rectifier circuit, the input frequency is $50 \, Hz$. The fundamental frequency of the ripple is ....... $Hz$.

$A$ $PN$ junction diode is used as:

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.

If a full wave rectifier circuit is operating from $50\, Hz$ mains,the fundamental frequency in the ripple will be........$Hz$.