$A$ circuit is arranged as shown in the figure. The output voltage ${V}_{0}$ is equal to $\ldots \ldots \text{ V}$.

What is the current flowing through the given circuit? $A$ given diode is an ideal diode.

Which of the following is correct with respect to the following statements? Due to diffusion of electrons from $n$ to $p$-side:
$I$. electrons are accumulated in the depletion region.
$II$. electron drift current is from $p$-side to $n$-side.
$III$. an ionised donor is left in the $n$-region.
$IV$. electrons of $n$-side come to $p$-side and electron-hole combination takes place in $p$-side.
Select the correct option from the following.

An operational amplifier is a

Two ideal diodes are connected to a battery as shown in the circuit. The current supplied by the battery is

For an ideal diode,the current in the following arrangement is: