bjt is active or passive?

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asked Sep 10, 2017 by anonymous

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asked May 2, 2020 by anonymous

What do you mean by active filter? State its advantages over passive filter . Define pass band & stop band with respect to filter.

Last answer: Active Filter: Active Filter is formed by using active element along with the passive components. Advantages of Active filter over Passive filter: High value of pass band gain can be obtained. It is ... pass band. Stop Band Filter: The frequency range which is attenuated is known as stop band.

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asked Jul 4, 2019 by anonymous

What is active and passive network?

Last answer: Active network is a network which contain one or more than one EMF source. An active network consists of an active element like battery or transistor. Passive network is a ... contain any source of energy. Passive network consists of passive element like resistance, inductance and capacitance.

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asked Aug 17, 2019 by anonymous

Define active circuit and passive circuit.

Last answer: Active circuit: Active Circuit is one which contains at least one source of e.m.f. or energy, is called active circuit. Passive Circuit: Passive Circuit is one which does not contain any source of e.m.f. or energy in it, is called passive circuit.

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asked Jul 27, 2019 by anonymous

Differentiate between active and passive transducers

Last answer: Active Transducer:- A transducer which do not requires external energy source to convert signal from one form to another. Active transducers passes gain. e.g. Thermometer,Thermocuople, bourdon tubes, ... other form. Passive transducer passes loss. e.g. Thermistor, strain gauges, LVDT etc .

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asked Sep 2, 2018 by anonymous

Define following networks (i) Active (ii) Passive (iii) Unilateral (iv) Bilateral.

Last answer: An element capable of giving out power or energy to some external device is called an active element. e.g. battery, generator etc. An element which is not an active element and capable of ... : A network consisting of only passive elements i.e. no active element, is called passive network.

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52 views 2 answers

asked Sep 23, 2017 by anonymous

Is BJT current controlled or voltage controlled?

Last answer: BJT is current controlled device.

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122 views 4 answers

asked Mar 25, 2018 by anonymous

A passive network is one which contains?

Last answer: A passive network is one which contains no source of e.m.f. in it.

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asked Apr 26, 2018 by anonymous

A passive network

Last answer: A passive network has no emf source.

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51 views 1 answer

asked Apr 28, 2018 by anonymous

In voltage source converter based HVDC transmission system the active power is controlled by changing

In voltage source converter based HVDC transmission system the active power is controlled by changing (A) phase angle of the converter ac input voltage (B) supply frequency of the converter ac input voltage (C) magnitude of the converter ac input voltage (D) DC voltage at the inverter terminals

Last answer: In voltage source converter based HVDC transmission system the active power is controlled by changing phase angle of the converter ac input voltage

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99 views 1 answer

asked Mar 25, 2018 by anonymous

The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is?

Last answer: The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is 6 kVAR.

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330 views 1 answer

asked Mar 25, 2018 by anonymous

The ratio of active power to apparent power is known as____ factor.

Last answer: The ratio of active power to apparent power is known as power factor.

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194 views 1 answer

asked Apr 26, 2018 by anonymous

An FET is a better chopper than a BJT because it has

An FET is a better chopper than a BJT because it has (A) lower offset voltage (B) higher series ON resistance (C) lower input current (D) higher input impedance

Last answer: An FET is a better chopper than a BJT because it has lower offset voltage

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552 views 1 answer

asked Mar 10, 2018 by anonymous

What is a BJT?

Last answer: Bipolar Junction Transistor (BJT): BJT is a Bipolar device. (Uses both electrons and holes charge carrier for current conduction) Two Junctions (Emitter junction & collector ... mode (Current amplification) Cutoff mode (Open switch) Saturation mode (Close switch)

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709 views 2 answers

asked Sep 29, 2017 by anonymous

is IGBT costlier than BJT and MOSFET?

Last answer: Yes IGBT is costlier than BJT and MOSFET.

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2.6k views 1 answer

asked Sep 10, 2017 by anonymous

why bjt is called current controlled device?

Last answer: In BJT there is movement of electrons and holes accros the junctions which is basicaly current flow.

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299 views 2 answers

asked Sep 10, 2017 by anonymous

when bjt is in cutoff ?

Last answer: When Q-point is at cut off region means it is just above the horizontal axis VCE

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82 views 1 answer

asked Sep 10, 2017 by anonymous

what is bjt biasing?

Last answer: The proper flow of zero signal collector current and the maintenance of the proper collector emmiter voltage during passage of single called as transistor biasing

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69 views 1 answer

asked Sep 10, 2017 by anonymous

bjt what is beta ?

Last answer: Beta is the current gain which is the ratio of collector current to base current.

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54 views 1 answer

asked Sep 10, 2017 by anonymous

is bjt a voltage controlled device ?

Last answer: No, BJT is a current controlled device .

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156 views 1 answer

asked Jan 1 by anonymous

Use Voltmeter, ammeter, wattmeter to determine active, reactive and apparent power consumed in given R-L series circuit, draw phasor diagram.

Last answer: Practical Significance In the industry environment Electrical Engineering diploma graduate are expected to measure basic parameters like voltage, frequency, time period etc. for R-L series circuits. Therefore ... /varying L. 7. Draw the phasor diagram for each of reading for verification.

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33 views 1 answer

asked Aug 5, 2019 by anonymous

Write example of each type (i) Primary transducer (ii) Active transducer (iii) Electrical transducer (iv) Digital transducer

Last answer: 1)primary transducer –Bourdon tube ,Diaphragm, Bellows 2) Active transducer- Thermocouple, Piezoelectric 3) Electrical transducer- Strain gauge, Electromagnetic flow meter, RTD 4) Digital transducer- Rotary encoder , shaft encoder.

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70 views 1 answer

asked Mar 19, 2018 by anonymous

Active power and apparent power are represented by?

Last answer: Active power and apparent power are represented by kW and kVA.

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66 views 1 answer

asked Sep 27, 2017 by anonymous

does the BJT have internal capacitance?

Last answer: Yes BJT have internal capacitances.

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60 views 1 answer

asked Sep 27, 2017 by anonymous

in which region BJT act as a switch?

Last answer: BJT act as switch in saturation and cutoff region ( ON state in saturation region and OFF state in cut-off region )

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91 views 2 answers

asked Sep 27, 2017 by anonymous

in which BJT operating region both the junctions are reverse biased?

Last answer: In cut-off region of BJT both the emitter-base junction and collector-base junction are reverse biased.

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62 views 2 answers

asked Sep 27, 2017 by anonymous

in which region BJT act as amplifier?

Last answer: Active region of BJT act as amplifier.

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94 views 2 answers

asked Sep 27, 2017 by anonymous

what are the three operating regions of BJT?

Last answer: Active , Saturation , Cut-off region of operations in BJT.

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asked Sep 23, 2017 by anonymous

Does BJT have second breakdown problem?

Last answer: Yes BJT have second breakdown problem.

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79 views 1 answer

asked Sep 21, 2017 by anonymous

BJT have how many terminals?

Last answer: BJT have three terminals Base, emitter and collector.

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89 views 1 answer

asked Sep 10, 2017 by anonymous

what does bjt stand for?

Last answer: Bipolar junction transistor

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75 views 1 answer

asked Sep 10, 2017 by anonymous

what are bjt amplifiers used for?

Last answer: Transformer coupled amplifiers Direct coupled amplifiers Multistage amplifiers Darlington amplifiers Emmiter follower

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70 views 1 answer

asked Sep 10, 2017 by anonymous

what are bjt transistors?

Last answer: Bjt transistor is a type of transistor which uses both electrons and hole charge carrier.bjts are used as switches and amplifiers.They amplify currents.

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82 views 1 answer

asked Jul 24, 2019 by anonymous

State reason BJT is called as bipolar junction transistor.

Last answer: BJT is called bipolar junction transistor because in BJT current conduction takes place due to majority as well as minority charge carriers.

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4.9k views 1 answer

asked Jun 18, 2018 by anonymous

If the base current of a BJT is 250 µA and emitter current is 15 mA, then the common base current gain will be

If the base current of a BJT is 250 µA and emitter current is 15 mA, then the common base current gain will be A) 0.98 B) 0.41 C) 59 D) 55

Last answer: If the base current of a BJT is 250 µA and emitter current is 15 mA, then the common base current gain will be 0.98

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150 views 1 answer

asked Apr 28, 2018 by anonymous

Which phenomenon is present in thyristors but absent in BJT, MOSFET and IGBT ?

Which phenomenon is present in thyristors but absent in BJT, MOSFET and IGBT ? (A) forward conduction (B) latching (C) forward blocking (D) reverse breakdown

Last answer: Which phenomenon is present in thyristors but absent in BJT, MOSFET and IGBT ? (A) forward conduction (B) latching (C) forward blocking (D) reverse breakdown

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asked Mar 19, 2018 by anonymous

What is the difference between BJT and FET?

Last answer: BJT is a current opperated transistor while FET is a field opperated transistor.

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2.6k views 1 answer

asked Mar 19, 2018 by anonymous

What is a BJT amplifier?

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75 views 0 answers

asked Mar 19, 2018 by anonymous

Is the input impedance of MOSFET more than BJT and FET?

Last answer: Yes, the input impedance of MOSFET more than BJT and FET.

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297 views 1 answer

asked Feb 20, 2018 by anonymous

What is the difference between beta and forced beta for BJT?

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519 views 0 answers

asked Feb 3, 2018 by anonymous

Operating frequency of power MOSFET is higher than that of power BJT. Justify the statement.

Last answer: Power MOSFET have high turning on and turning off capability high switching speed of MOSFET is due to the high rate of change of drain voltage. The switching losses of power MOSFET ... lower frequency. Hence, operating frequency of power MOSFET is higher than that of power BJT.

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700 views 1 answer

asked Sep 20, 2017 by anonymous

what is the value of Beta in power BJT?

What is the value of Beta in power BJT?

Last answer: The beta value in power BJT is 5 to 10.

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83 views 1 answer

asked Sep 15, 2017 by anonymous

why IGBT is preferred as a power switch over both power BJT and MOSFET?

Last answer: Because it has a higher switching frequency and heat tolerance.

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110 views 1 answer

asked Sep 13, 2017 by anonymous

why igbt is used instead of bjt and mosfet?

Last answer: ON state losses of IGBT is less as compared to MOSFET and BJT.

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110 views 1 answer

asked Jun 24, 2020 by anonymous

State 2 advantages of JFET over BJT.

Last answer: Advantages of JFET over BJT: 1) High input impedance 2) Better thermal stability 3) Produce less noise 4) Smaller than BJT 5) Rugged in construction and simpler to fabricate 6) High degree of isolation between Input and Output.

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36 views 1 answer

asked May 2, 2020 by anonymous

List specification of BJT.

Last answer: * The bipolar junction transistor (BJT) has small signal current gain, α (hfb). * Maximum collector current Ic (max). * Maximum collector to emitter voltage, VCE (max). * Collector to emitter ... . * Collector to emitter cut off voltage, VCEO. * Base emitter saturation voltage, VBE (sat).

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49 views 1 answer

asked Jul 10, 2019 by anonymous

List configurations of BJT.

Last answer: Configurations of BJT : 1) Common Base (CB) configuration 2) Common Emitter (CE) configuration 3) Common Collector (CC) configuration

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37 views 1 answer

asked Sep 5, 2018 by anonymous

State the need of biasing of BJT.

Last answer: Need of biasing: The basic need of transistor biasing is to keep the base-emitter (B-E) junction properly forward biased and the collector-emitter (C-E) junction properly reverse biased ... transistor biasing is necessary for normal and proper operation of transistor to be used for amplification.

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106 views 2 answers

asked Sep 5, 2018 by anonymous

Draw circuit diagram of voltage divider biasing list two advantages of voltage divider biasing of BJT.

Last answer: Two advantages of voltage divider biasing of BJT. 1. It is very simple method of transistor biasing. 2. The biasing conditions can be very easily set. 3. there is no loading of ... 5. The resistor RE introduces a negative feedback. So all the advantages of negative feedback are obtained.

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489 views 1 answer

asked Sep 5, 2018 by anonymous

Compare BJT with FET

Last answer: FET BJT It is unipolar device i.e. current in the device is carried either by electrons or holes It is bipolar device i.e. current in the device is carried either by ... from minority- carrier storage effects & therefore has lower switching speeds & cut-off frequencies.

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48 views 1 answer

asked Sep 5, 2018 by anonymous

Compare between BJT and FET on the basis of (i) Biolar/Unipolar (ii) Tharmal Runaway (iii) Noise (iv) Applications

Last answer: Parameter BJT FET Bipolar/Unipolar It is bipolar device i.e. current in this device is carried by electrons and holes. It is unipolar device i.e. current ... in oscilloscopes, electronic voltmeters and other measuring and testing equipment because of their high input impedance.

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712 views 1 answer

anonymous · Answer 1 · 2017-09-20T04:56:12+0000

answered Sep 20, 2017 by anonymous

BJT control the flow of electron so it is a active device.

bjt is active or passive?

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