ICS Part 2 Physics Chapter 18 Short Questions Preparation

Question # 1

Why the biasing requirement of the junction of a transistor for its normal operation?

Ans 1: For the normal operation the base emitter junction of transistor is forward biased and collector base junction is reverse biased.

Question # 2

Give any two characteristics of operational amplifier.

Ans 1: Input Resistance: It is the resistance between the + and - input of the amplifier,Whose value is of the order of several mega ohms.
Output resistance:It is the resistance between the output terminal and ground.Its value is only a few ohms.

Question # 3

What is AND Gate?

Ans 1: It is a logic gate that implements the truth table of AND operations.It has two or more input and single output.

Question # 4

Define logic system and logic gates.

Ans 1: A digital system deals with the quantities or variable which have only two discrete values or state.
The electronic circuits which implements the various logic operation are known as logic gates.

Question # 5

Define Open Loop gain of operational amplifier.

Ans 1: The ratio of output voltage to voltage difference between non -inverting and inverting inputs ,when there is no external connection between the input and output is called open loop gain of operational amplifier.

Question # 6

Define Depletion region?

Ans 1: A region in a semiconductor device,usually at the junction of p-type and n-type materials ,in which there is neither an excess of electrons nor of holes is called depletion region,It charge less region.

Question # 7

Why charge carriers are not present in the depletion region?

Ans 1: This is due to the fact when an electron from an n region diffuses into the p-region,it leaves behind a positive ion.When this electron recombines with the hole in the p-region,a negative ion is formed,So no charge carrier are available in this region,though it contains immobile positive and negative ions.

Question # 8

What is OP-GATE?

Ans 1: OR-GATE implements the logic of OR operation.It has two or more inputs and a single output.Its output will be zero only when all the inputs are zero.

Question # 9

How does the motion of an electron in n type substance differ from the motion of holes in a p type substance?

Ans 1: more mobile and rapid than holes in p-type substance because electrons do not require holes for their motions but p-type substance because electrons do not require holes for their motion but hole depend upon electrons for their motion,Both move in opposite direction.

Question # 10

Differentiate between the forward biased and the reserve biase.

Ans 1: When p side is positive and n-side is negative,the diode is forward biased.The width of depletion region reduces to which more current is allowed to flow across the junction.The forward resistance is few ohms.
Ans 2: When p side is negative and n side is positive,the diode is reserved biased.The width of depletion region is increased and a very small current flows across the junction due to flow of minority charges carriers,The resistance offered by the diode is several mega ohms.

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ICS Part 2 Physics Chapter 18 Short Questions Preparation

12th Class PhysicsShort Questions Preparation

12th Class Physics Chapter Wise Preparation

Online Short Questions For Chapter 7 "ICS Part 2 Physics Chapter 18 Short Questions Preparation "

Physics - ICS Part 2 Physics Chapter 18 Short Questions Preparation

Why the biasing requirement of the junction of a transistor for its normal operation?

Give any two characteristics of operational amplifier.

What is AND Gate?

Define logic system and logic gates.

Define Open Loop gain of operational amplifier.

Define Depletion region?

Why charge carriers are not present in the depletion region?

What is OP-GATE?

How does the motion of an electron in n type substance differ from the motion of holes in a p type substance?

Differentiate between the forward biased and the reserve biase.

Prepare Complete Set Wise Questions For Chapter 7 "ICS Part 2 Physics Chapter 18 Short Questions Preparation "

Set 1

Set 2

Set 3

ICS Part 2 Physics Chapter 18 Short Questions Preparation - Set 1

Why the biasing requirement of the junction of a transistor for its normal operation?

Give any two characteristics of operational amplifier.

What is AND Gate?

Define logic system and logic gates.

Define Open Loop gain of operational amplifier.

Define Depletion region?

Why charge carriers are not present in the depletion region?

What is OP-GATE?

How does the motion of an electron in n type substance differ from the motion of holes in a p type substance?

Differentiate between the forward biased and the reserve biase.

ICS Part 2 Physics Chapter 18 Short Questions Preparation - Set 2

Write a note on LED.

What do LED and LASER stand for?

What is the role of potential barrier in a diode?How it is formed in diode?

How the normal operation of transistor is achieved?

What is the effect of forward biased and reverse biasing of a diode on the width of depletion region?

Why charge carriers are not present in the depletion region?

Why the biasing requirement of the junction of a transistor for its normal operation?

What is the net charge on a n-type or p-type substance?

What is semiconductor diode?

Why is the photodiode operated in reverse biased state?

ICS Part 2 Physics Chapter 18 Short Questions Preparation - Set 3

Write a note on LED.

What is AND Gate?

What is the role of potential barrier in a diode?How it is formed in diode?

How the normal operation of transistor is achieved?

What is the effect of forward biased and reverse biasing of a diode on the width of depletion region?

Define logic system and logic gates.

How is p-n junction formed?

Why the biasing requirement of the junction of a transistor for its normal operation?

What is the net charge on a n-type or p-type substance?

Give four application or uses of photodiode?

ICS Part 2 Physics Chapter 18 Short Questions Preparation

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