I-V Characteristics of Forward and Reverse Bias

Which of the following circuit diagram of p – n junction diode is (i) forward bias and in (ii) reverse bias:
    

If each diode has a forward bias resistance of $25\mathrm{\Omega }$  in the below circuit,

Which of the following options is correct?

In the given circuit, the current $I$ through the battery will be

Following circuit contains diodes with forward bias having resistance $25 \mathrm{\Omega }$ and reverse bias having infinite resistance. The ratio of $\frac{I_1}{I_2}$ is equal to

In the given figure, a p-n Junction is

Categories each of the following junction diodes as either forward biased or reverse biased. Give reason for each answer.

In an ON state, the individual Silicon and Germanium diodes, allow a voltage drop of $0.7 \mathrm{V}$ and $0.3 \mathrm{V}$ respectively across them. In the circuit shown, the Si and the Ge diode, are connected in a parallel combination to a voltage source of $10 \mathrm{V}$.

What is the voltage $V_0$ for the circuit network?

In the given circuit, the equivalent resistance (in$\Omega$ ) between$A$and $B$ is (if $A$has positive
potential and $B$ has negative potential) (Diodes are assumed to be ideal)

$4$ ideal diodes are connected as shown in the circuit, the current through $50 \Omega$ is

An ac voltage of peak value $20 \mathrm{V}$ is connected in series with a silicon diode $\left(V_{\mathrm{b}}=0.7 \mathrm{V}\right)$ and a load resistor ($380 \mathrm{\Omega }$ ). If the forward junction resistance of the diode is $6 \mathrm{\Omega }$, then, peak diode current and peak load voltage are

If the potential at $A$ is greater than the potential at $B$, then the equivalent resistance of the circuit across $AB$ is

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The increase in the width of the depletion region in a $p$-$n$ junction diode is due to:

In diode, increasing the forward voltage, the thickness of depletion layer ____

In the given circuit, the approximate value of voltage drop $V_o$ across $R$ is

Sketch the voltage across the central $2.2 \mathrm{k\Omega }$ resistor as a function of time. Take current in left direction as positive.

Find the current flowing between the points $A$ and $B$ in the following circuit. Take $R=1 \mathrm{\Omega }$.

Write a short note on threshold voltage of a diode.

In a forward biased p-n junction

The figure shows two diodes and two resistances connected to a battery of $2 \mathrm{V}$. Find the current supplied by the battery.

Define barrier potential for reverse biased p-n junction with diagram