The function of a rectifier is

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 a reverse resistance $R_f = \infty$. When an input voltage with an amplitude of $30 \ V$ and a frequency of $50 \ Hz$ is applied,what are the peak,average,and $RMS$ values of the load current,respectively?

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

Write the principle of a rectifier.

In a full-wave rectifier,the output is:

In a rectifier circuit,the filter circuit: