$PN-$junction diode works as an insulator if connected:

In the reverse biasing of a $p-n$ junction diode,

The following table provides the set of values of $V$ and $I$ obtained for a given diode. Let the characteristics be nearly linear. Over this range,the forward and reverse bias resistance of the given diode respectively are:

Condition	$V$	$I$
Forward biasing	$2.0 \, V$	$60 \, mA$
Forward biasing	$2.4 \, V$	$80 \, mA$
Reverse biasing	$0 \, V$	$0 \, \mu A$
Reverse biasing	$-2 \, V$	$-0.25 \, \mu A$

In a semiconductor diode,the reverse biased current is due to the drift of free electrons and holes caused by:

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

Consider the junction diode as ideal. The value of current flowing through $AB$ is