What is the main use of a transistor?

Last Answer : Parameter PNP transistor NPN transistor Definition Two blocks of p- types semiconductors are separated by one thin block of n-type semiconductor. Transistor in which two ntype layer ... Positive Voltage Emitter Terminal Collector Terminal Ground Signal High Low

Draw construction of SCR using two transistor model. Explain its operation.

Description : Draw construction of SCR using two transistor model. Explain its operation.

Last Answer : Two Transistor Model of SCR or Thyristor

Draw the V-I characteristics of power transistor.

Description : Draw the V-I characteristics of power transistor.

Last Answer : V-I characteristics of power transistor:

Describe thermal runaway of transistor and explain how it can be avoided.

Description : Describe thermal runaway of transistor and explain how it can be avoided.

Last Answer : Concept of thermal runaway: 1.We know that IC = β IB + (1+ β) ICO Where ICO is the leakage current and ICO is strongly dependent on temperature. 2. Leakage current approximately doubles for ... Thermal runaway can be avoided by : 1) Using stabilization circuitry 2) Heat sink

Define α and β of the transistor.

Description : Define α and β of the transistor.

Last Answer : α: The ratio of collector current IC to emitter current IE for a constant collector to base voltage VCB in the CB configuration is called current gain alpha (α). β : The ratio of collector ... a constant collector to emitter voltage VCE in the CE configuration is called current gain beta (β) .

List various transistor biasing methods.

Description : List various transistor biasing methods.

Last Answer : Types of biasing methods: i. Base bias (or fixed bias) ii. Base bias with emitter feedback. iii. Base bias with collector feedback iv. Voltage divider bias (or self bias) v. Emitter bias.

Transistor operating configurations

Description : Transistor operating configurations

Last Answer : Transistor operating configurations

Define junction field effect transistor (JFET) and give an example.

Description : Define junction field effect transistor (JFET) and give an example.

Last Answer : Junction Field-Effect Transistor: It is a semiconductor device having three terminals, namely Gate, Drain and Source, in which the current flow is controlled by an electric field set up by an external voltage applied ... : i) n-channel JFET and ii) p-channel JFET Examples of JFET: BFW 10, BFW 11

Explain working of n-p-n transistor in unbiased condition.

Description : Explain working of n-p-n transistor in unbiased condition.

Last Answer : Construction of NPN transistor: For an unbiased transistor no external power supplies are connected to it. Base is sandwiched between collector & emitter terminal. It is thin & lightly doped ... providing external power supply to transistor & this process is known as Biasing.

Define α & β and derive the relation between (α) &) (β) of transistor.

Description : Define α & β and derive the relation between (α) &) (β) of transistor.

Last Answer : α : The ratio of output collector current IC to input emitter current IE in the CB configuration is called current gain alpha (α). β : The ratio of output collector current IC to the input base current IB in the CE configuration is ... ( 1/β) + 1 hence 1/ α = (1+β )/ β Therefore, α = β /(1+β)

Define biasing of transistor

Description : Define biasing of transistor

Last Answer : Biasing of transistor is the process that makes the base emitter junction of transistor always forward biased and collector junction reverse biased for achieving the faithful amplification .

With neat diagram explain working of NPN transistor.

Description : With neat diagram explain working of NPN transistor.

Last Answer : N-p-n transistor is made by sandwiching thin layer of p-type semiconductor between two layers of n-type semiconductor. It has three terminals - Emitter, Base and collector. The npn transistor has two ... up in the collector as it is more positive. In this way, current flows in the transistor.

Draw and explain self-basing of a transistor.

Description : Draw and explain self-basing of a transistor.

Last Answer : Transistor Biasing is the process of setting a transistors DC operating voltage or current conditions to the correct level so that any AC input signal can be amplified correctly by the transistor. ExplanationIt ... Applying KVL to o/p loop , Collector-emitter voltage, VCE = VCC − IC RC

Compare between CB , CE & CC transistor configuration.

Description : Compare between CB , CE & CC transistor configuration.

Last Answer : Parameter CB CE CC I/P impedance Low Or 50Ω Medium Or 600Ωto 4kΩ High Or 1 MΩ Current Gain Less than or equal to 1 High Highest Voltage Gain Medium Medium Less ... k Ω to 50 k Ω Low Or 50 Ω Phase shift between input and output 0° 360° 0°

Why transistor is called as bipolar device.

Description : Why transistor is called as bipolar device.

Last Answer : BJT is called bipolar device because in BJT current conduction takes place due to majority as well as minority charge carriers that is because of electrons as well as holes.

Why do we need to bias a transistor?

How do you bias a transistor?

What do you mean by biasing of a transistor?

Description : What do you mean by biasing of a transistor?

List the main parts of D.C. motor

Description : List the main parts of D.C. motor

Last Answer : Main parts of D.C. motor and their functions: Part Functions Yoke i) Provides mechanical support for poles. ii) Acts as protecting cover for machine. iii) Carries magnetic flux. ... a fixed physical position relative to the stator. Shaft Used to transfer mechanical power

What are the main electrical equipment used in HPS ? State the function of each parts of it in brief.

Description : What are the main electrical equipment used in HPS ? State the function of each parts of it in brief.

Last Answer : Following Main Electrical Equipment used in HPS & their function: 1. Alternator 2. Exciter 3. Transformer 4. Switchgear Function : 1) Alternator:- Alternator is coupled to ... part from the healthy section. It contains circuit breaker, relays, switches and other control devices.

List out main components of Diesel power station.

Description : List out main components of Diesel power station.

Last Answer : Main components of Diesel power station: 1) Diesel Engine 2) Engine Air intake system 3) Engine Fuel System 4) Engine Exhaust system 5) Engine cooling system 6) Engine Lubricating system 7) Engine Starting system 8) Diesel Engine Generator (Alternator)

List out main components of Reactors.

Description : List out main components of Reactors.

Last Answer : List the main components of Reactors: 1. Core 2. Nuclear fuel (U235) 3. Moderator 4. Control Rod 5. Reflector 6. Reactor vessel 7. Shielding

How rating of main switch and cable is selected for Industrial Installation.

Description : How rating of main switch and cable is selected for Industrial Installation.

Last Answer : 1. Rating of Main Switch or Fuse Rating is decided in industrial installation: Rating of main switch or fuse is based up the starting current of motor. For calculating starting current is considered 2 ... take 1.5 times the rated current or full load current. & thus cable rating is decided.

The main advantage of AC over DC is:

Description : The main advantage of AC over DC is: (A) Conversion flexibility from one voltage level to other (B) AC can be easily converted into DC by using a rectifier (C) AC is easy to maintain & can be easily distributed at long distances (D) All of the above

Last Answer : Ac is easy to maintain and ac can be easily converted to dc by rectifier .There is no commutator for conversion in ac that's why ac machines are weight less and more efficiency.ac machines occupy less space than dc .

The main objectives in framing tariff are:

Description : The main objectives in framing tariff are: (A) The consumers must readily understand the tariffs (B) The tariff must be equitable amongst different consumers (C) Tariffs can be modified from time to time (D) All of the above

Last Answer : The main objectives in framing tariff are: (A) The consumers must readily understand the tariffs (B) The tariff must be equitable amongst different consumers (C) Tariffs can be modified from time to time (D) All of the above

In main line service as compared to urban and suburban service?

Last Answer : In main line service as compared to urban and suburban service distance between the stops is more, maximum speed reached is high, acceleration and retardation rates are low.

In split phase motor main winding is of?

Last Answer : In split phase motor main winding is of thick wire placed at the bottom of the slots.

The main function of a fuse is to?

Last Answer : The main function of a fuse is to prevent excessive currents.

What is the main disadvantage of phase advancers?

Description : What is the main disadvantage of phase advancers?

Last Answer : It cannot be used for motors below 20 H.P.

What is the main purpose of electroplating?

Description : What is the main purpose of electroplating?

Last Answer : Protecting reactive metals from corrosion.

What are the main causes of harmonics?

Description : What are the main causes of harmonics?

Last Answer : Harmonic is a non linear load because linear load voltage deviated due to connection of some electrinie device such as converter,inverter

What are the main parts of a generator?

Description : What are the main parts of a generator?

Last Answer : the main parts of the generator are as follows yoke Armature Poles field winding Prime mover Commutator Shaft Bearings Brushes

Differences between MOSFET and FET

Description : Difference between MOSFET and FET

Why silicon is most used in transistors

Neha8235 · Answer 1 · 2018-05-21T19:48:36+0000

Main use of a transistor as amplifier and as switch.

What is the main use of a transistor?

Please log in or register to add a comment.

1 Answer

Answer :

Please log in or register to add a comment.

Related questions