When $p$-type and $n$-type semiconductors are brought into contact,they form a $P-N$ junction which acts as a .........

Choose the correct waveform that can represent the voltage across $R$ of the following circuit,assuming the diode is ideal one:

In comparison to a half-wave rectifier,the full-wave rectifier gives lower

$A$ full-wave rectifier supplies a load of $1 \ k\Omega$. The $a.c.$ voltage applied to the diode is $220 \ V_{rms}$. If the diode resistance is neglected,the value of the ripple voltage $(rms)$ is .... $V$.

What is rectification and rectifier? Why is a $p-n$ junction diode used as a rectifier?

$A$ $p-n$ junction diode as a rectifier converts