Class 12 Physics Chapter 14 Online Test – Semiconductor Electronics

Transistor can act as a switch in

Diode is used as

In binary system 111 represent

The device to convert solar energy into electrical energy is

For P-N-P transistor with common base , the value of Alpha is 0.98 , then common emitter current hain beta will be

A semi conductor is cooled from T1K to T2K , then its resistance will-

The minority current carry in p type semiconductor are

Which configuration of transistor has highest voltage gain ?

With the increase of temperature,  the resistance of a semiconductor

Unit of amplification factor of transistor is

The impurity to get p type germanium or silicon semi conductor should be

The impurity element used for p type semiconductor is

To obtain an oscillator from an amplifier the type of feedback used is

Main gate (basic gate) is-

The gap between conduction energy band and valence energy band is called

(1+1) in binary addition is

The Boolean expression for AND gate is

The group third element used asants for germanium and silicon gives us

Junction transistor with back to back on junction was discovered by

Full wave rectifier uses

For semiconductors the gap between valence and conduction energy bands is

In a transistor ,the majority charge carries are communicated towards the base by the part

A P-type semiconductor is

Which one of the following logic gates is universal logic gate ?

When LED is reserved biased,

Majority carries in p type semiconductors are

The temperature coefficient of a semiconductor is

At zero degree Kelvin the piece of germanium

In full wave rectification if input frequency is 50 Hz then output frequency will be-

For NPN transistor is common base beta is 100 the current gain Alpha for common emitter will be

In N type semiconductors , majority charge carriers are

For obtaining p type semiconductor travelent material is mixed in germanium but for obtaining and type semiconductor which is fixed with ge-

Which of the following is the Boolean expression of OR gates

Diode maybe used to

Width of forbidden band is maximum for