List of top Physics Questions on Semiconductor electronics: materials, devices and simple circuits asked in Bihar Board XII

Describe with diagram the working method of p-n-p and n-p-n transistors.
Mention the difference between p-type and n-type semiconductors.
What is a light-emitting diode (LED)? Write down one application of it.
In a full wave rectifier, if input frequency is 50 Hz, then output frequency will be:
P-N junction diode is used as:
Instrument used to increase input voltage/current is called:
Width of forbidden energy gap in the semiconductor is approximately:
Which of the following is blocked by a capacitor?
Determine the characteristic curve of Zener diode.
Identify diode, transistor, LED and I.C. from the given mixed collection.
By using multimeter distinguish between n-p-n and p-n-p transistor.
Draw I - V characteristic curve of p-n junction in forward bias and reverse bias.
Explain the working of P-N junction diode. Draw the circuit of full wave rectifier and explain its working.
What are '\(\alpha\)' and '\(\beta\)' parameters of transistor? What is their relation?
The symbol \(\rightarrow\!\!|\) is the symbol of
Unit of amplification factor of transistor is
The impurity element used for p-type semiconductor is
Diode is used as