List of top Physics Questions on The p-n Junction

Three identical p-n junction diodes \(D_1\), \(D_2\) and \(D_3\) are connected across a battery as shown in the figure. If the widths of the depletion regions of \(D_1\), \(D_2\) and \(D_3\) are \(W_1\), \(W_2\) and \(W_3\), respectively, then the correct option is:

Which of the following p-n junction diodes is forward biased?

A diode is connected to a $220$ V (rms) ac source in series with a capacitor as shown in the diagram. Find the voltage (rms) across the capacitor.



Find $V_{AB}$ in the circuit given below.



In forward and reverse biased silicon p-n junction, the dominant mechanisms for the motion of charge carriers are:

(a) Draw the V-I characteristics of silicon diode.

(b) Explain the following terms:

(i) minority carrier injection in forward bias
(ii) breakdown voltage in reverse bias

Briefly explain the two important processes that occur during the formation of a p-n junction.
In an unbiased p-n junction, at equilibrium, which of the following statements is true ?
With the help of circuit diagrams, briefly explain the forward biasing and the reverse biasing of a p-n junction diode.
Briefly explain the two important processes that occur during the formation of a p-n junction.
In an unbiased p-n junction, at equilibrium, which of the following statements is true ?
With the help of circuit diagrams, briefly explain the forward biasing and the reverse biasing of a p-n junction diode.