Semiconductor Electronics: Materials, Devices and Simple Circuits Physics - Semiconductor Electronics: Materials, Devices and Simple Circuits

Examples of inorganic semiconductors is:

A diode as a rectifier changes :

Conduction occurs in semiconductors :

Which of the following is an atom donor impurity?

P-N diode is :

Select one donor impurity from the following : Boron (B), Aluminum (Al) and Arsenic (As).

Name the crystal structure of intrinsic semiconductor.

Write the names of any two compound (organic) semiconductors.###Write the names of any two organic compound semiconductors.

In the circuit symbol of a semiconductor diode, the arrow is pointing towards whom?

How does the junction plane behave in the case of reverse bias?

What is the width of the depletion layer of a P-N junction when it is (i) forward biased (ii) reverse biased?

What are the effects on the depletion layer when the diode is connected in forward bias and reverse bias condition?

Explain current flow in N- and P-type semiconductors.

Which currents are produced when an external electric field is applied on a semi-conductor?

How does the conductivity of semiconductors increase with increasing temperature?

Explain the difference between conductor, insulator and semiconductor on the basis of energy band in solids.

What is called extrinsic semiconductor? Explain doping process.

Define semiconductors on the basis of energy band theory. What are the charge carriers in semiconductor? What do semiconductors start behaving like at absolute zero temperature?

What are N-type semiconductors? Their conductivity is higher than that of pure semiconductors. Why? Explain with figure.

On the basis of band theory, differentiate between conductors, insulators and conductors.

What is meant by rectification? Draw a diagram of a half wave rectifier electric circuit. Write a brief description of its working. Draw the waveforms of input voltage and output voltage for this rectifier circuit.

What is meant by forward bias and reverse bias of p-n junction diode? Draw experimental electrical circuit diagram to study V-I characteristic in forward bias and reverse bias of p-n junction diode. Draw forward bias and reverse bias V-I characteristic curves of p-n junction diode and briefly explain the following :
(i) Threshold or cut-in voltage
(ii) Breakdown voltage.

Describe the procedure for obtaining V-I characteristic curve in forward bias of P-N junction diode. Make a circuit diagram of the experimental arrangement.