For the diode,the characteristic curves are given at different temperatures. The relation between the temperatures is

Two ammeters $A_1$ and $A_2$ are connected as shown in the given figure. By neglecting the internal resistance of the ammeters, the reading in the meter $A_1$ is (in $\text{A}$)

The change in current through a junction diode is $12 \, mA$ when the forward bias voltage is changed by $0.6 \, V$. The dynamic resistance is

$A$ $p-n$ junction diode is connected to a battery of emf $5.7 \ V$ in series with a resistor of $5 \ k\Omega$ such that it is forward biased. If the barrier potential of the diode is $0.7 \ V$,neglecting the diode resistance,the current in the circuit is:

Avalanche breakdown in a $PN$ junction diode is due to

The cut-off voltage of the diodes (shown in figure) in forward bias is $0.6 \,V$. The current through the resistor of $40 \,\Omega$ is ........... $mA$.