Consider the following circuit. The waveform given in input is as shown. If ${V_{B_1}}$ and ${V_{B_2}}$ are less than the peak value of the input,then the output will look like:

The forward resistance of the diode is zero and the reverse resistance is infinite. When the positive terminal of a $2 \ V$ battery is connected to point $A$ and the negative terminal to point $B$,what current will flow through the circuit (in $A$)?

$A$ semiconductor $X$ is made by doping a germanium crystal with indium $(Z = 49)$. $A$ second semiconductor $Y$ is made by doping germanium crystal with arsenic $(Z = 33)$. Both are joined end to end and connected to a battery as shown. Which of the following statements is correct?

The potential barrier in the depletion layer is due to

In the given figure,the voltage of point $A$ is ............ $V$.

In the following circuit,the reading in the ammeter is (in $mA$)