NCERT Class 12 MCQ Quiz Hub

What is the number of possible crystal systems?

The material most commonly used to manufacture electronic solid state devices is :

A p-type semiconductor is:

The part of a transistor which is heavily doped to produce a large number of majority carriers is :

Crystal diode is:

Bonds in a semiconductor :

Number of electrons in the valence shell of a semiconductor is:

Semiconductors of both p-type and n-type are produced by:

With fall of temperature, the forbidden energy gap of a semiconductor

In a p-type semiconductor, current conduction is by:

The relation between number of free electrons (n) in a semiconductor and temperature (T) is given by:

n reverse biasing:

Main function of a transistor is to :

To obtain p-type silicon semiconductor, we need to dope pure silicon with:

On applying reverse bias to a junction diode, it:

To obtain electrons as majority charge carriers in a semiconductors the impurity mixed is:

In the middle of the depletion layer of a reverse biased p-n junction, the:

In a common base amplifier the phase difference between the input signal voltage and output voltage is :

Energy bands in solids are a consequence of:

In semi conductor which are responsible for conduction:

In binary system III represents:

On heating, resistance of semiconductors:

p-n junction diode can be used as:

In intrinsic semiconductor at room temperature, the number of electrons and holes are:

In full wave rectifier, input a.c. current has a frequency v. The output frequency of current is :

Winch of the following gate is not an universal gate?

Zener diode is used for:

In semi conductor, at room temperature :