supersindhu

 Profile Answers by supersindhu Questions by supersindhu

• Sep 12th, 2014

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

Neha Pal

• 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

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neha pal

• Sep 5th, 2014

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

updesh upadhyay

• 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.

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What is the difference between Power Amplifier and Voltage Amplifier?

Nishant

• 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...

ana_m

 Profile Answers by ana_m Questions by ana_m

• Jan 24th, 2009

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

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

HARENDRA K PUSHPAT

• Aug 4th, 2014

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

cubangeekboy

 Profile Answers by cubangeekboy Questions by cubangeekboy

• Nov 21st, 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.

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KRISHNAKANT

• Jul 31st, 2014

MP do not have any inbuilt memory storage but MC contains inbuilt memory storage.

MP cant perform boolean expressions but a MC performs

Suriya Nataraj

• Jul 6th, 2014

A microprocessor has its interfacing components off the chip.
A micro controller is a microprocessor that is connected to its interfacing components on a single chip..This facility saves a lot of time..

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How the active power factor correction changes the wave shape of current drawn by a load to improve the power factor ?

Sanjeev

• Jun 19th, 2014

The power factor correction device is known as power factor improver and the work is to reduce the extra reactive power usage by the load. When we purchase the power from the electricity companies th...

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How to format a memory card by using memory card

ROBIN DAS

• Nov 1st, 2013

Connect your mobile to computer through data cable or through card reader. Right click on memory card click on format.

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What are edge triggered flip flop and level triggered flip flop? How do they differ from one another?

Brijesh Ranga

• Aug 2nd, 2013

Level trigger ff work only the level of the signal either high(1) or low(0) but edge trigger work on the either rising edge or talling edge

krishna

• Apr 17th, 2013

Apart from the answers above, it is important to note that edge triggered flip flops have advantage over level triggered flip flops.?

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gopichand

• Jun 21st, 2013

Hi guys,
here the information about 1 start and 1stop bit is given to confuse the candidate ,
in synchronous transmission there is no need of start and stop bits so 2400/(7+1) is the ans..........

samatha

• Jun 15th, 2013

Start an d stop bits are not needed so it is 2400/8=300

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Give examples of circuit protecting device apart from fuse, circuit beaker, relays, lighting arrestor, switch gears.

Justin

• May 5th, 2013

A zener diode, for smaller amounts of voltage regulation.

gorakh anna pandhre

• Apr 18th, 2013

Opoto-isolaters

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Justin

• May 5th, 2013

No. Telecommunications equipment are sometimes scattered on a wide area (as one example), so you'd probably find the need to check for interference using a spectrum analyzer, etc.

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Nadim

• Mar 29th, 2013

I think you should do a project based on micro controller...if you have a knowledge of MATLAB then it will be an added advantage for you, you can make a project on that. The micro controller based projects are simple and easy to understand and even you can understand their programs easily..

purushottam

• Jan 2nd, 2007

I  am in BE(electronics engineer).I want to make a project,please suggest me a project that i do.I hope you will do a needfull help

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Is RFID in developing stage?
WHat is scope in RFID?

Sahil

• Mar 22nd, 2013

RFID transponder is a special kind of radio transmitter and reciever. It is activated when it receives a signal of a specific kind. RFID transponders are present in smart cards and Radio Frequency Identification tags.

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What is Memristor? How many modes it works? Also what is its Advantage? How It differ from others & why the name evolve? & What is its Uses?

Aaqib

• Mar 19th, 2013

Memristor is a contraction of Memory Resistor it means that its store the value based on amount of Charge Has Passed through on the applied previously applied voltage it was postulated by Leon Chua f...

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How can we increase the gain and directivity of an antenna?

abid saleem

• Mar 18th, 2013

Antenna gain relates the intensity of an antenna in a given direction to the intensity that would be produced by a hypothetical ideal antenna that radiates equally in all directions (isotropically) an...

uzipereg

 Profile Answers by uzipereg Questions by uzipereg

• Jul 30th, 2011

Geometry, direction for example.

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How to measure the insulation resistance for printed circuit boards ?

SANJIVAN

• Feb 22nd, 2013

Because opamp having high input impedance due to differential amplifier connected at the input side which is in the range of MEGA ohms and low output impedance due to power amplifier used at the outpu...

sumanth

• Dec 20th, 2012

Yes, by using the known impedance load at the output

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himanshi

• Feb 12th, 2013

Two ground terminals are provided to make the pin structure symmetrical o/w it requires only 39 pins.

hari krishna

• Jan 23rd, 2013

One is for the VCC & another one is clock issues

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what is Micro controller ? how to program Micro controller ?

irshad

• Jan 31st, 2013

Generally, microprocessor is a integrating the CPU on a single chip and it has some additional features like memory, registers,flags,pointer etc;but micro controller means it has same operation as microprocessor but with the different features like counters,ram,rom, etc.

kaliraja

• Nov 10th, 2012

Micro controller = micro processor + memory + interfacing features(ports) + additional features like counters.
A Micro controller can be directly connected to external devices. But a Processor needs a interface controller to connect with external input and output devices.

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When a small amount of Cu is added to a Ni conductor, then the?a) Resistivity of Ni will decrease at all temperatures because Cu is better conductor than Nib) Residual resistivity of Ni at low temperatures will increase as Cu atoms acts as defect centersc) Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defectsd) Resistivity of Ni remains unaltered...

Lokesh M

 Profile Answers by Lokesh M Questions by Lokesh M

• Jan 3rd, 2013

Answer is C. If a small amount of Cu is added to Ni conductor, then resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects. According to Matthies...

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