The voltage $V_0$ in the network shown is

In which of the following figures is the $p-n$ junction diode reverse biased?

$A$ 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 $\Omega$)

The current through an ideal $PN-$ junction diode shown in the following circuit diagram will be.......$mA$.

In a $p-n$ junction diode, an electric field of magnitude $2 \times 10^5 \ V/m$ exists in the depletion region. $A$ particle with charge $-3e$ can diffuse from $n$-side to $p$-side, if it has a minimum kinetic energy of $0.6 \ eV$. The width of the depletion region of the $p-n$ junction is: (in $nm$)

$A$ semiconductor device is connected in a series circuit with a battery and a resistance. $A$ current is found to pass through the circuit. If the polarity of the battery is reversed,the current drops almost to zero. The device may be