List of top Physics Questions on PN Junction Diode asked in UP Board XII

Draw a circuit diagram to obtain characteristic curve in forward bias of p-n junction diode. Mention the effect of forward bias on depletion layer of the junction.

Explain the working method of a reverse biased (p-n) junction diode by making its circuit diagram and explain avalanche breakdown with the help of its V-I characteristic graph.

What is the rectifying process? Explain the half-wave rectifying action of a (p-n) junction diode with the help of a circuit diagram.

Explain the working of a forward biased (\( p - n \)) junction diode by making circuit diagram and by drawing its \( V - I \) characteristic graph. Define its dynamic resistance.

Find current through the battery in the circuit shown in fig :
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The resistance of p-n junction diode in forward bias is 25 ohm. How much voltage in forward bias be changed so that the change in current would be 2 mA?

An a.c. voltage of peak value 20 V is connected in series with a silicon diode and a load resistance of 500 \(\Omega\). The forward resistance of the diode is 10 \(\Omega\) and the resistive voltage is 0.7 V. Find the peak current through the diode and peak voltage across the load.

On the basis of energy band diagram in solids, explain the difference between conductor, semiconductor, and insulator. What is the need of doping in pure semiconductors? Write the value of current in the ideal diodes \( D_1 \) and \( D_2 \) in the given circuit.

Explain the working method of a reverse biased (p-n) junction diode by making its circuit diagram and explain avalanche breakdown with the help of its V-I characteristic graph.

What is the rectifying process? Explain the half-wave rectifying action of a (p-n) junction diode with the help of a circuit diagram.

Explain the working of a forward biased (\( p - n \)) junction diode by making circuit diagram and by drawing its \( V - I \) characteristic graph. Define its dynamic resistance.

Explain the working method of p-n junction diode in reverse bias with the help of a circuit diagram.

Explain the meaning of rectification. Using a p-n junction diode, draw a circuit diagram of a full-wave rectifier and give a brief description of its working. Give a graphical representation of input and output voltage/current.

Compare features of p-type and n-type semiconductors. Draw circuit diagram of half-wave rectifier of p-n junction diode and explain it.

There is minimum deviation of light ray on passing through a prism (n = \( \sqrt{3} \)). If the angle of incidence is twice the angle of refraction for this ray, then what will be the angle of prism and the angle of refraction?

Explain the operation of p-n junction diode in forward bias.