write short notes on single phase system.
Last Answer : A "phase" in an electrical system is often referred to as the waveform (may be voltage or the current) of the power supply. The waveform in an AC system is typically ... domestic household or commercial supplies and street lighting. Industrial supplies requires three phase electrical supply .
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107 views
1 answer
asked
Dec 12, 2017
by
anonymous
Write short notes on Arduino.
Last Answer : Arduino: Arduino is a open source hardware and software. Arduino is a microcontroller. Since Arduino is open source it have many manufacturer. Arduino project was started in about year 2005 ... many sensors to the Arduino. Arduino board have microprocessor, crystal oscillator, 5V voltage regulator.
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253 views
1 answer
asked
Mar 9, 2018
by
anonymous
Write short notes on: 1) Phosphor characteristics 2) Liquid crystal display
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425 views
0 answers
asked
Mar 2, 2018
by
anonymous
write short notes on BH curve.
Last Answer : The B-H curve is the relation between Flux density B in Wb/m2 (on Y Axis) and H in AT/m (on X axis) It is also known as magnetization characteristics. This curve particularly useful ... occurs. At point A' material gets magnetically saturated and the curve becomes flat (parallel to X axis)
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1.3k views
3 answers
asked
Nov 15, 2017
by
anonymous
write short notes on Low-pass filter.
Last Answer : low-pass filter (1) filter exhibiting frequency selective characteristic that allows low-frequency components of an input signal to pass from filter input to output unattenuated all high-frequency components are ... the bandwidth of the filter. A filter whose impulse response is a low-pass signal.
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143 views
2 answers
asked
Oct 28, 2017
by
anonymous
write short notes on Linear motor.
Last Answer : Normal electrical motor produces rotatory motion same the linear motor produces linear motion. Linear motors have low efficiency. Linear motor can directly produce straight line motion linear motor do not required gears or crank shaft to produce linear motion.
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73 views
1 answer
asked
Oct 28, 2017
by
anonymous
Why are the notes that I add to my Mac address book being deleted?
Last Answer : answer:If you want to add any extra information, type it in the Note section. You can have Address Book display a picture of the person or any image that you want. To add a picture, just drag any image ... the File menu (or press Command-S). . . . were you doing this last and most important part?
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1 view
1 answer
asked
Feb 27
by
anonymous
Is there a free program that will let me sync my notes from my iphone to my computer through itunes?
Last Answer : I am pretty sure mine does it automatically. What version of iPhone OS and iTunes do you have?
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1 view
1 answer
asked
Feb 27
by
anonymous
Can you edit iphone "notes" on your mac and then sync to the phone?
Last Answer : no you can not. There isn’t a way to do that right now. Hopefully in the future cause that would be awesome
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2 views
1 answer
asked
Feb 14
by
anonymous
Write the function of freewheeling diode.
Last Answer : Function of Freewheeling Diode (FWD): a) Freewheeling diode is used across inductive loads such as coils, dc motor armature etc. to prevent voltage spikes across these loads when the switching ... current is shifted from switching device, it is turned off easily and regain its blocking ability.
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122 views
1 answer
asked
Oct 13, 2019
by
anonymous
Diode VI characteristics
Last Answer : Diode VI characteristics
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228 views
1 answer
asked
Oct 19, 2019
by
anonymous
applications of Schottky diode.
Last Answer : 1) To rectify very high frequency signals. 2) As a switching device in digital computers. 3) In clipping & and clamping circuits. 4) In low power schottky TTL circuits. 5) In mixing and detecting circuits used in communication systems. 6) In low voltage power supply circuits.
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59 views
1 answer
asked
Aug 19, 2019
by
anonymous
applications of P-N junction diode
Last Answer : 1.It is used as rectifier in DC power supply 2.It is used as free wheel diode across relay or inductive load 3.It is used as switch in logic circuits used in computers 4.It is used as detector in demodulation circuits of communication receiver
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72 views
1 answer
asked
Aug 19, 2019
by
anonymous
99 views
0 answers
asked
Oct 25, 2018
by
Sai
State any two applications of zener diode.
Last Answer : Applications of Zener Diode: i) As a voltage regulator. ii) As a fixed reference voltage provider in transistor biasing circuits. iii) As peak clippers or limiters in wave shaping circuits.
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157 views
1 answer
asked
Sep 5, 2018
by
anonymous
List specification of zener diode
Last Answer : 1. Zener Voltage 2. Maximum Zener current 3. Power dissipation 4. Operating temperature 5. Dynamic Resistance
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91 views
1 answer
asked
Sep 5, 2018
by
anonymous
Define ripple factor and PIV of diode.
Last Answer : 1. Ripple factor: It is define as ratio of R.M.S. value of AC component to the DC component in the output. 2. PIV : It is maximum reverse voltage that diode can withstand without destroying junction.
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109 views
1 answer
asked
Sep 5, 2018
by
anonymous
Explain the operating principle of LASER and list applications of LASER diode.
Last Answer : A basic construction of Laser diode is as shown . A PN junction is formed by two layers of doped gallium arsenide. There is highly reflective surface at one end of PN junction and ... 6. laser scanning and light beam illumination. 7. Military applications 8. Medical surgery 9.Diamond cutting
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282 views
1 answer
asked
Sep 5, 2018
by
anonymous
what is the minimum voltage required to turn on a diode ?
Last Answer : 0.7 v sil and 0.3 v for gr
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156 views
1 answer
asked
Dec 28, 2017
by
anonymous
what is diode ?
Last Answer : Semiconductor device. That allows flow of current in one direction
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178 views
2 answers
asked
Dec 25, 2017
by
anonymous
Suggest the diode material suitable to rectify 0.5V AC signal.
Last Answer : The diode material suitable to rectify 0.5V AC signal is silicon
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180 views
1 answer
asked
May 16, 2020
by
anonymous
Draw symbols of zener diode and LED.
Last Answer : Symbol of zener diode : Symbol of LED
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410 views
1 answer
asked
May 16, 2020
by
anonymous
57 views
0 answers
asked
Feb 21, 2020
by
anonymous
While studying the V-I characteristics of a zener diode, there are two different values of resistors connected in series with it. In case of the forward characteristics, a ~70 ohm resistor is connected ... ~510 ohm resistor. What is the reason behind it ? Is the difference really necessary ?
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116 views
0 answers
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Avalanche diode
Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
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60 views
1 answer
asked
Jul 6, 2019
by
anonymous
96 views
0 answers
asked
Sep 24, 2018
by
anonymous
A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω
Last Answer : A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω
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2.7k views
1 answer
asked
Jun 18, 2018
by
anonymous
A diode in which the change in reverse bias voltage varies the capacitance is called as A) Varactor diode B) Switching diode C) Tunnel diode D) Zener-diode
Last Answer : A diode in which the change in reverse bias voltage varies the capacitance is called as Varactor diode
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143 views
1 answer
asked
Jun 18, 2018
by
anonymous
Which diode exhibits negative resistance characteristic? (A) LED (B) Zener (C) Tunnel diode (D) PN diode
Last Answer : Which diode exhibits negative resistance characteristic? (A) LED (B) Zener (C) Tunnel diode (D) PN diode
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199 views
1 answer
asked
Apr 28, 2018
by
anonymous
What is a diode clamper circuit?
Last Answer : Tha faction of diode
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140 views
1 answer
asked
Mar 22, 2018
by
anonymous
What is the use of diode in the circuit?
Last Answer : Diode is a device which allows the flow of current in one direction and blocks the current in opposite direction.
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122 views
1 answer
asked
Mar 22, 2018
by
anonymous
Which side of the diode is positive?
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78 views
0 answers
asked
Mar 15, 2018
by
anonymous
How can you identify a zener diode?
Last Answer : It conducts current in either direction.
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237 views
2 answers
asked
Mar 15, 2018
by
anonymous
How do we test a diode?
Last Answer : test
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72 views
1 answer
asked
Mar 15, 2018
by
anonymous
Explain the formation of parasitic BJT and parasitic diode in Power MOSFET. Can parasitic diode be used in same power electronics applications?
Last Answer : Parasitic Diode: The parasitic diode is in between drain and source. The MOSFET structure itself contains parasitic diode or body drain diode. This parasitic diode allows the reverse flow of current when the ... of MOSFET as a BJT collector. Parasitic BJT operates in the cut-off region.
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2.6k views
1 answer
asked
Feb 6, 2018
by
anonymous
Justify the statement. Antiparallel diode is connected across MOSFET.
Last Answer : In MOSFET current is flow from drain to source but when the load is inductive the current may flow in opposite direction. To avoid the opposite flow of current and to protect MOSFET the antiparallel diode is connected across MOSFET.
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160 views
1 answer
asked
Feb 2, 2018
by
anonymous
How much time a diode takes to switch ON in forward bias condition.
Last Answer : t=0 sec.
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138 views
1 answer
asked
Dec 25, 2017
by
Nitin
What would cause a diode to fail?
Last Answer : Supply voltage beyond its limit
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127 views
1 answer
asked
Dec 9, 2017
by
anonymous
Can we use a zener diode as a rectifier?
Last Answer : Yes we can use zener diode as rectifier but it have limitations better to use normal diode. Zener diode have some different applications.
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2.6k views
1 answer
asked
Dec 9, 2017
by
anonymous
What is the use of Schottky diode?
Last Answer : Schottky diode are use in SMPS, Sample and hold circuits and voltage clamping etc.
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120 views
1 answer
asked
Dec 9, 2017
by
anonymous
What is the use of laser diode?
Last Answer : laser diodes are use in telecommunication, rangefinders, barcode readers etc.
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101 views
1 answer
asked
Dec 9, 2017
by
anonymous
What does a Shockley diode do?
Last Answer : It is diode have low forward voltage drop and very high switching action
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91 views
1 answer
asked
Dec 9, 2017
by
anonymous
What is the use of fast recovery diode?
Last Answer : Fast recovery diode are used in high frequency rectification. Fast recovery diode also used for freewheeling. Fast recovery diode also used for DC to DC converter.
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96 views
1 answer
asked
Dec 9, 2017
by
anonymous
What is the use of Tunnel diode ?
Last Answer : Tunnel diode is use in frequency converters and detectors, ultra high speed switching, amplifiers, etc.
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149 views
1 answer
asked
Dec 9, 2017
by
anonymous
Last Answer : In Reverse bias of diode when the cathode is connected to positive and anode is connected to negative very small current flows this very small current is known as leakage current of diode.
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86 views
1 answer
asked
Sep 27, 2017
by
anonymous
Last Answer : Diode conducts when the anode voltage is greater than the cathode voltage.
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83 views
1 answer
asked
Sep 21, 2017
by
anonymous
Last Answer : Diode have two terminals.
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116 views
4 answers
asked
Sep 21, 2017
by
anonymous
Last Answer : It is semiconductor diode with a low forward voltage drop and very high switching action
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80 views
1 answer
asked
Sep 13, 2017
by
anonymous
Last Answer : PN junction of zener diode is heavily doped than ordinary diode. For the occurrence of Zener effect the zener diode is heavily doped. If the zener diode is not heavily doped then Zener effect ... breakdown voltage is sharp. If the diode is lightly doped the diode will have higher breakdown voltage.
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263 views
1 answer
asked
Sep 13, 2017
by
anonymous
Last Answer : Yes dynamic impedance of zener diode vary.
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770 views
1 answer
asked
Sep 13, 2017
by
anonymous
