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What is the use of filter?

Asked By: supersindhu | Asked On: Sep 15th, 2014

Answered by: rajesh on: Sep 18th, 2014

To remove the unwanted signals

Silicon controlled rectifier

Asked By: supersindhu | Asked On: Sep 15th, 2014

What is the another of scr?

Answered by: rajesh on: Sep 18th, 2014


What is the difference between plc and dcs control system?

Asked By: Interview Candidate | Asked On: Dec 5th, 2006

Answered by: Umer Farooq on: Sep 16th, 2014

PLC is programmable logical controller which individually perform while DCS consists of number of PLC's, so the control is distributed to these PLC's

Answered by: muhammed hashif on: Oct 2nd, 2011

plc stands for programmable logic controller.dcs stands for distributed control system.functions of plc and dcs are same.both are using for as a instrumentation controller.but dcs are very advanced,it...

3 phase AC supply

Asked By: shweta tripathi | Asked On: Aug 1st, 2011

Why 440volts instead of 660volts in 3 phases of supply system?

Answered by: Umer Farooq on: Sep 16th, 2014

440 volts instead of 660 volts in 3 phase is because of 1 phase is always zero at any instant of time therefore we cant use 660 volts in 3 phase

Answered by: Hajee on: Feb 17th, 2012

440v is the line to line voltage, there is 230v for phase to neutral. So both 230, 440 volts is common operating voltage recommended by Indian standard rules. If our application required 660 volts, Just we step up the voltage by suitable step up transformer.

Rom and ram cards

Asked By: Rujul | Asked On: Mar 18th, 2007

Which of the following is is used to hold rom and ram cards 1. Computer bus 2. Expansion cards 3. Mother board 4. Cache memory

Answered by: supersindhu on: Sep 12th, 2014

Mother board is used to hold rom and ram cards

Answered by: saqr on: Jul 10th, 2014

ROM is read only memory but ram is read accesses memory

J-k flip-flop

Asked By: Rujul | Asked On: Mar 18th, 2007

If the input j is connected through k input of j-k flip-flop, the flip-flop will behave as a 1. D(delay) type flip-flop 2. T-type flip-flop 3. Toggle switch 4. 2 or 3 above

Answered by: supersindhu on: Sep 12th, 2014

It acts as T-type flip-flop

Answered by: priyanka kumari on: Jul 14th, 2011

It acts as a T-type flip flop

What type of architecture is used in 8085 microprocessor?

Asked By: puni | Asked On: Nov 20th, 2007

Answered by: supersindhu on: Sep 12th, 2014

In 8085 microprocessor Von Neumann type of architecture is used.

Answered by: SINDHUJA on: Sep 1st, 2014


Race around condition

Asked By: ANANDM.M4 | Asked On: Jun 19th, 2009

What is race around condition in a jk flipflop? How it can be avoided?

Answered by: supersindhu on: Sep 12th, 2014

Race around condition is s=r=1 this can be avoided by using master slave jk flipflop

Answered by: Sagar21p on: Oct 7th, 2010

In SR flip flop Race condition occurs when both S=r=1..i.e both the outputs Q andQbar race to the same level..this is called race condition...IN JK flipflop whwn J=k=1 the outputs RAce around 0 and 1....

What is meant by filter? What are the different types of filters?

Asked By: vrams | Asked On: Jul 31st, 2009

The output of the rectifier pulsating in nature, it consists of a desired DC component of voltage and unwanted ripple components. These ripple components are removed by placing filter circuit at the output of the rectifier.Types of filters: 1. Capacitor filter 2. Series inductor filter ...

Answered by: chinki on: Sep 15th, 2014

Filter is remove unwanted signal not using the output signal.

Answered by: krishnakant on: Jul 30th, 2014

The o/p of the rectifier ckt is not pure dc its pulsating in nature to make the o/p pure dc smooth dc the filter circuit is connected to the o/p of rectifier Not only in the rectifier ckt but where e...

Vestisial side band

Asked By: venktesh | Asked On: Aug 23rd, 2009

Why vestisial side band is used in tv signal transmission?

Answered by: supersindhu on: Sep 12th, 2014

To reduce bandwidth vestigial side band is used

Answered by: kumar praveen bodu on: Mar 23rd, 2010

Television broadcasting requires both amplitude as well as frequency modulation AM for picture and FM for sound, so we require larger bandwidth to broadcast in order to say 5MHZ for each individu...

Biasing for transister circuits

Asked By: kkumawat82 | Asked On: Dec 23rd, 2009

Why we need biasing for transister, fet and mosfet.?What is the importance of the biasing in transister circuits.

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Editorial / Best Answer

Answered by: microelectronics

View all answers by microelectronics

Member Since Oct-2009 | Answered On : Dec 24th, 2009

Biasing of transistor circuits is done for making it work in the desired region of operation. 

Answered by: supersindhu on: Sep 12th, 2014

Biasing is required to make transistor in active mode

Answered by: Sagar21p on: Oct 7th, 2010

Biasing means operationg the transistors in a particular region it could be either active(linear),cuttoff(off swith),saturation(nonlinear)For BJT*active region it acts as an amplifier EB jn is FB and ...

Television communication

Asked By: rajanicd | Asked On: Jul 7th, 2010

What type of television communication is used in india?A) ntscb) palc) secamd) nstc

Answered by: saba iqbal on: Sep 13th, 2014

PAL System

Answered by: ER.SUNEEL GAUTAM on: Sep 8th, 2014

Phase Alternation Line by Line

High speed power application

Asked By: boopathi8 | Asked On: Jan 4th, 2011

Which one of the following is used for high speed power application?A) bjtb) mosfetc) igbtd) triac

Answered by: supersindhu on: Sep 12th, 2014


Answered by: Aparna Gaikwad on: Mar 16th, 2011


Why the antenna is called passive element?

Asked By: archana | Asked On: Aug 7th, 2011

Answered by: supersindhu on: Sep 12th, 2014

Antenna is a passive element because it cannot generate energy of its own

Answered by: Neha Pal on: Sep 5th, 2014

Antenna is called passive device bcz active device isn the device which do not require any external power bcz it has a power like stabilizer which is active device, bt in case of antenna this is use bcz of receiving signal from other then broadcast the system

What is the main application of scr in electronic field as well as in software field?

Asked By: suraj | Asked On: Jul 13th, 2006

Answered by: neha pal on: Sep 5th, 2014

Scr stands for silicon controlled rectifier.bcz it is a three terminal four layer device and use for power amplification purpose.

Answered by: updesh upadhyay on: May 16th, 2013

A silicon-controlled rectifier (or semiconductor-controlled rectifier) is a four-layer solid state current controlling device. The name "silicon controlled rectifier" or SCR is General Electrics trade name for a type of thyristor.

Power amplifiers and voltage amplifiers

Asked By: suryatej.22 | Asked On: Dec 2nd, 2008

What is the difference between power amplifier and voltage amplifier?

Answered by: Nishant on: Sep 2nd, 2014

• Voltage amplifiers have a high voltage gain, while power amplifiers have a high power gain. • In most voltage amplifiers, current gain is very low, while power amplifiers have a significant cur...

Answered by: ana_m on: Jan 24th, 2009

Power amplifiers basically amplify both current and voltage (p=v*i).Voltage amplifiers only amplify the voltage.

What is the difference between emulator and simulator?

Asked By: ragav_sathish | Asked On: Aug 20th, 2007

Answered by: Anonymous on: Aug 5th, 2014

In my opinion, I think, Simulator is the machine which the function is same as Remote Tools that is to manage, views, or upgrading the system or the performance(s). Emulator is a machine that shows...

Answered by: bharath_p on: Jul 9th, 2009

Simulator: A software program impersonating a Hardware. Thus SIMULATING the scenarios faced in the original hardware.Emulator: A Hardware (with or without software) impersonating another Hardware. Thus ELIMINATING the need for the original.

Bridge rectifiers

Asked By: dikarthik | Asked On: Jan 30th, 2008

Why we are using the bridge rectifier in most of the circuits instead of full wave rectifier eventhough the output of both are same?

Answered by: HARENDRA K PUSHPAT on: Aug 4th, 2014

Because PIV rating of center tapped rectifier in twice then the bridge type of rectifier.

Answered by: cubangeekboy on: Nov 20th, 2008

Bridge rectifiers use transformer that do not employ a center tap, thereby permitting the use of smaller transformers. this saves space, cost and is more effecient.


Asked By: gowri | Asked On: Mar 11th, 2009

Why are the 2 input terminals of an op-amp are called as inverting & non-inverting terminals?

Answered by: krishnakant on: Jul 30th, 2014

The differential amplifier can perform all the arithmetic operations such as addition subtraction even integration so need operational amplifier but basically it is a directly coupled high gain amplif...

Answered by: mangesh gadam on: Feb 1st, 2014

Opamp (operational amplifier)is a direct coupled high gain amplifier usually consisting of one or more differential amplifier

What is biasing?

Asked By: pushkar | Asked On: Jul 4th, 2006

Star Read Best Answer

Editorial / Best Answer

Answered by: sachin.t.m

Answered On : Jul 6th, 2006

Biasing means applying the DC voltage across the device for its correct operation.

Answered by: krishnakant on: Jul 30th, 2014

In order to stabilize the q point and to make an electronic element properly operating a voltage or current source is applied to the diode or transistors called biasing.

Answered by: prashan on: Jul 30th, 2014

Biasing is used to stabilize the Q point, for operating the transistor in various mode like as amplifier, switch etc.,

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