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bjt is active or passive?
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asked
Sep 10, 2017
by
anonymous
bjt
active
passive
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answered
Sep 20, 2017
by
anonymous
BJT control the flow of electron so it is a active device.
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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.
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.
active
filter
state
its
advantages
over
passive
define
pass
band
&
stop
with
respect
to
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asked
Jul 4, 2019
by
anonymous
What is active and passive network?
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.
active
passive
network
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asked
Aug 17, 2019
by
anonymous
Define active circuit and passive circuit.
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.
active
circuit
passive
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51
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asked
Jul 27, 2019
by
anonymous
Differentiate between active and passive transducers
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 .
active
passive
transducers
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asked
Sep 2, 2018
by
anonymous
Define following networks (i) Active (ii) Passive (iii) Unilateral (iv) Bilateral.
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.
active
passive
unilateral
bilateral
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asked
Sep 23, 2017
by
anonymous
Is BJT current controlled or voltage controlled?
Last answer:
BJT is current controlled device.
bjt
controlled
device
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asked
Mar 25, 2018
by
anonymous
A passive network is one which contains?
A passive network is one which contains?
Last answer:
A passive network is one which contains no source of e.m.f. in it.
passive
network
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asked
Apr 26, 2018
by
anonymous
A passive network
A passive network
Last answer:
A passive network has no emf source.
passive
network
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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
voltage
source
converter
hvdc
transmission
system
active
power
controlled
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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?
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.
apparent
power
ac
circuit
kva
active
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asked
Mar 25, 2018
by
anonymous
The ratio of active power to apparent power is known as____ factor.
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.
ratio
active
power
apparent
factor
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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
fet
bjt
chopper
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asked
Mar 10, 2018
by
anonymous
What is a BJT?
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)
bjt
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asked
Sep 29, 2017
by
anonymous
is IGBT costlier than BJT and MOSFET?
Last answer:
Yes IGBT is costlier than BJT and MOSFET.
igbt
bjt
mosfet
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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.
controlled
current
bjt
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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
bjt
cutoff
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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
bjt
biasing
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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.
bjt
beta
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asked
Sep 10, 2017
by
anonymous
is bjt a voltage controlled device ?
Last answer:
No, BJT is a current controlled device .
bjt
voltage
controlled
device
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1
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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.
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.
voltmeter
ammeter
wattmeter
active
reactive
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asked
Aug 5, 2019
by
anonymous
Write example of each type (i) Primary transducer (ii) Active transducer (iii) Electrical transducer (iv) Digital transducer
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.
primary
transducer
active
electrical
digital
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asked
Mar 19, 2018
by
anonymous
Active power and apparent power are represented by?
Active power and apparent power are represented by?
Last answer:
Active power and apparent power are represented by kW and kVA.
active
power
apparent
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asked
Sep 27, 2017
by
anonymous
does the BJT have internal capacitance?
Last answer:
Yes BJT have internal capacitances.
bjt
internal
capacitance
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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 )
bjt
region
switch
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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.
bjt
region
reverse
bias
junction
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asked
Sep 27, 2017
by
anonymous
in which region BJT act as amplifier?
Last answer:
Active region of BJT act as amplifier.
bjt
region
amplifier
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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.
operating
regions
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.
bjt
second
breakdown
problem
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asked
Sep 21, 2017
by
anonymous
BJT have how many terminals?
Last answer:
BJT have three terminals Base, emitter and collector.
bjt
terminals
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1
answer
asked
Sep 10, 2017
by
anonymous
what does bjt stand for?
Last answer:
Bipolar junction transistor
bjt
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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
bjt
amplifiers
used
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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.
bjt
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asked
Jul 24, 2019
by
anonymous
State reason BJT is called as bipolar junction transistor.
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.
bjt
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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
bjt
emitter
current
common
base
gain
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150
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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
thyristors
bjt
mosfet
igbt
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1
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asked
Mar 19, 2018
by
anonymous
What is the difference between BJT and FET?
What is the difference between BJT and FET?
Last answer:
BJT is a current opperated transistor while FET is a field opperated transistor.
difference
between
bjt
fet
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1
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asked
Mar 19, 2018
by
anonymous
What is a BJT amplifier?
What is a BJT amplifier?
bjt
amplifier
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75
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0
answers
asked
Mar 19, 2018
by
anonymous
Is the input impedance of MOSFET more than BJT and FET?
Is the input impedance of MOSFET more than BJT and FET?
Last answer:
Yes, the input impedance of MOSFET more than BJT and FET.
input
impedance
mosfet
bjt
fet
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297
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1
answer
asked
Feb 20, 2018
by
anonymous
What is the difference between beta and forced beta for BJT?
What is the difference between beta and forced beta for BJT?
difference
between
bjt
beta
forced
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519
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0
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asked
Feb 3, 2018
by
anonymous
Operating frequency of power MOSFET is higher than that of power BJT. Justify the statement.
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.
mosfet
bjt
frequency
operating
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700
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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.
beta
value
power
bjt
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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.
igbt
bjt
mosfet
power
switch
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110
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1
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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.
igbt
bjt
mosfet
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1
answer
asked
Jun 24, 2020
by
anonymous
State 2 advantages of JFET over BJT.
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.
jfet
bjt
advantages
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asked
May 2, 2020
by
anonymous
List specification of BJT.
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).
list
specification
of
bjt
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asked
Jul 10, 2019
by
anonymous
List configurations of BJT.
List configurations of BJT.
Last answer:
Configurations of BJT : 1) Common Base (CB) configuration 2) Common Emitter (CE) configuration 3) Common Collector (CC) configuration
configurations
bjt
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asked
Sep 5, 2018
by
anonymous
State the need of biasing of BJT.
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.
state
need
biasing
bjt
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asked
Sep 5, 2018
by
anonymous
Draw circuit diagram of voltage divider biasing list two advantages of voltage divider biasing of BJT.
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.
voltage
divider
biasing
advantages
bjt
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asked
Sep 5, 2018
by
anonymous
Compare BJT with FET
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.
compare
bjt
fet
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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
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.
bjt
fet
biolar
unipolar
tharmal
runaway
noise
applications
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...