The characteristic curve of an ideal $p-n$ junction diode is:

In the circuit, all three diodes $D_1, D_2, D_3$ have a forward resistance of $50 \text{ } \Omega$ each and infinite backward resistance. If the battery voltage is $5 \text{ V}$, find the current through the $100 \text{ } \Omega$ resistance. (in $\text{mA}$)

Both the diodes used in the circuit shown are assumed to be ideal and have negligible resistance when these are forward biased. The built-in potential in each diode is $0.7\; V$. For the input voltages shown in the figure,the voltage (in $Volts$) at point $A$ is

$A$ junction diode has a resistance of $50 \, \Omega$ when forward biased and $5000 \, \Omega$ when reverse biased. The current in the arrangement shown in the figure will be

$A$ diode operates at a constant potential drop of $0.5\, V$ for all currents and has a maximum power rating of $100\, mW$. If the source voltage is $1.5\, V$,what resistance must be connected in series with the diode so that the current in the circuit is at its maximum safe value? (in $\Omega$)

If the voltage across the diode in the given circuit is $0.5 \ V$,then the current flowing through the circuit is ...... $mA$.