Description : Why is it called a 555 timer?
Answer :
Because it have three 5k Ohm resistances.
asked
Dec 19, 2017
by
anonymous
Description : What is the difference between a counter and a timer?
Answer :
Counter counts only when the trigger is applied and timer counts continuously with some equal delay.
asked
Dec 19, 2017
by
anonymous
Description : What is IC 555?
Answer :
Ic 555 is timer used for indicating time intervals which is settled in ic
asked
Mar 10, 2018
by
anonymous
Description : What is watchdog timer ? Explain the implementation of time out for ATM with block diagram and program.
Answer :
A special type of timer is a watchdog timer, which will reset the system after a predefined timeout. Watchdog timer reset timer every X time unit, else timer generates a signal ... be loaded into timereg. This is to prevent erroneous software from unintentionally resetting the watchdog timer.
asked
Jan 22, 2018
by
anonymous
Description : Blackt Electrotech 230V 24x7 Energy Saving Socket Type Digital Programmable Plastic Electronic Timer (White)
Answer :
Buy from amazon: https://amzn.to/2SUTSdv Buy: http://bit.ly/2ZqlAkS
asked
Aug 1, 2019
by
anonymous
Description : What is the use of transformer?
Answer :
The use of transformer is to do lower or raise the voltage or currents in an electrical circuit. That's quite so simple.
asked
May 15, 2020
by
anonymous
Description : What is the use of diode in the circuit?
Answer :
Diode is a device which allows the flow of current in one direction and blocks the current in opposite direction.
asked
Mar 22, 2018
by
anonymous
Description : What is the use of a thyristor in a circuit?
asked
Mar 19, 2018
by
anonymous
Description : What is the use of a Mosfet?
asked
Mar 19, 2018
by
anonymous
Description : What is the use of Arduino Uno?
Description : What is the use of PWM in Arduino?
asked
Mar 15, 2018
by
anonymous
Description : What is the use of Arduino Mega?
asked
Mar 15, 2018
by
anonymous
Description : What language does the Arduino use?
asked
Mar 15, 2018
by
anonymous
Description : What is the basic use of capacitor?
asked
Mar 15, 2018
by
anonymous
Description : What is the use of synchronous motor?
asked
Mar 15, 2018
by
anonymous
Description : What do we use to generate electricity?
Answer :
Use wind turbines. In a windy seashore we set up some wind turbines. But when the place is not windy we got no electricity.
asked
Mar 10, 2018
by
anonymous
Description : What is the use of Fast Fourier Transform?
asked
Mar 10, 2018
by
anonymous
Description : What is the use of Z transform?
asked
Mar 10, 2018
by
anonymous
Description : What is the use of DFT in DSP?
asked
Mar 10, 2018
by
anonymous
Description : What is the use of digital signal processing?
asked
Mar 10, 2018
by
anonymous
Description : What is the use of AC and DC drives?
asked
Mar 10, 2018
by
anonymous
Description : What is the use of signal flow graph?
asked
Mar 10, 2018
by
anonymous
Description : What is the use of differential amplifier?
asked
Mar 10, 2018
by
anonymous
Description : What is the use of operational amplifiers?
asked
Mar 10, 2018
by
anonymous
Description : What is the use of Arduino board?
asked
Mar 10, 2018
by
anonymous
Description : What is the use of stability factor?
asked
Mar 10, 2018
by
anonymous
Description : What is the main use of a transistor?
Answer :
Main use of a transistor as amplifier and as switch.
asked
Mar 10, 2018
by
anonymous
Description : What is the use of power factor correction?
asked
Mar 10, 2018
by
anonymous
Description : What is the use of lightning arrester?
Answer :
The lighting arrester is used to discharge the high voltage surge towards the earth by the lighting strike
asked
Dec 25, 2017
by
anonymous
Description : What is the use of Buchholz relay in transformer?
Answer :
This is a transformer that is used to step up and down current.
asked
Dec 17, 2017
by
anonymous
Description : What is the use of an electric motor?
Answer :
Electrical motors are use for converting electrical energy to mechanical energy. It may be use in fans, pumps, washing machine, cranes, trains, factories, industries etc.
asked
Dec 16, 2017
by
anonymous
Description : What is the use of Schottky diode?
Answer :
Schottky diode are use in SMPS, Sample and hold circuits and voltage clamping etc.
asked
Dec 9, 2017
by
anonymous
Description : What is the use of laser diode?
Answer :
laser diodes are use in telecommunication, rangefinders, barcode readers etc.
asked
Dec 9, 2017
by
anonymous
Description : What is the use of SCR?
Answer :
SCR are use in lamp dimming, power regulators, motor control, rectifications of high power AC, control of welding machines and also use as switch these are some uses of silicon controlled rectifier.
asked
Dec 9, 2017
by
anonymous
Description : What is the use of fast recovery diode?
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.
asked
Dec 9, 2017
by
anonymous
Description : What does the discharge transistor do in the 555 timer circuit? (A) Discharge the external capacitor to stop the timing (B) Charge the external capacitor to stop the timing (C) Discharge the external capacitor to start the timing over again (D) Charge the external capacitor to start the timing over again
asked
Apr 5, 2018
by
anonymous
Description : State the use of synchroscope.
Answer :
Use of Synchroscope: The synchroscope is used to determine the exact instant of switching required to connect the alternators in parallel or put an alternator in parallel with the infinite bus. ... idea of the faster or slower machine to make adjustments in speed of alternators for synchronising.
asked
May 24, 2020
by
anonymous
Description : State the advantages of use of high voltage in transmission of Electric power.
Answer :
Advantages: 1. As Transmission voltage increases, current decreases. 2. As current decreases, cross section of conductor decreases. 3. As cross section of conductor decreases, its ... high voltage transmission line, successful interconnection of transmission line is possible than low voltage.
asked
May 22, 2020
by
anonymous
Description : Use phasors to find
Answer :
Use phasors to find
asked
Apr 2, 2020
by
anonymous
Description : State the use of:- (i) Clip-on-ammeter (ii) Phase sequence indicator
Answer :
(i) Clip-on-ammeter: used for measurement of current in cables/lines in live conditions without disconnecting them. (ii) Phase sequence indicator: To determine /find the phase sequence of 3 phase supply.
asked
Sep 6, 2018
by
anonymous
Description : An _____________is a network of electrical components used to supply, transfer and use electric power: (A) Electric power system (B) Electric power (C) All of the above (D) None of the above
Answer :
An Electric power system is a network of electrical components used to supply, transfer and use electric power.
asked
May 8, 2018
by
anonymous
Description : The use of regenerator in a gas turbine cycle (1) increases efficiency but has no effect on output (2) increases output but has no effect on efficiency (3) increases both efficiency and output (4) increases efficiency but decreases output
Answer :
The use of regenerator in a gas turbine cycle increases efficiency but has no effect on output
asked
Apr 29, 2018
by
anonymous
Description : Magnetic circuit breakers use _________ A) Permanent magnets B) Earth magnets C) Solenoid D) All the above
Answer :
Magnetic circuit breakers use Solenoid
asked
Apr 29, 2018
by
anonymous
Answer :
The stator of phase shifting transformer for use in conjunction with an A.C. potentiometer usually has a two-phase winding.
asked
Mar 21, 2018
by
anonymous
Answer :
In a shaded pole single-phase motor, the revolving field is produced by the use of shading coils.
asked
Mar 20, 2018
by
anonymous
Answer :
Series capacitors on transmission lines are of little use when the load VAR requirement is small.
asked
Mar 20, 2018
by
anonymous
Answer :
Discrimination between main and back up protection is provided by the use of relays which are slow.
asked
Mar 20, 2018
by
anonymous
Description : Use of auto-transformer is economical when the transformation ratio is?
Answer :
Use of auto-transformer is economical when the transformation ratio is near unity.
asked
Mar 19, 2018
by
anonymous
Description : Salient pole rotor is use for which speed?
Answer :
Salient pole rotor is use for low and medium speed prime movers.
asked
Mar 18, 2018
by
anonymous
Description : Which rotor is use for high speed in turbo alternators?
Answer :
Non-salient pole rotor is used for high speed in turbo alternators.
asked
Mar 18, 2018
by
anonymous