Electronics Engineering Interview Questions

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.

An SCR can bridge the gap of an opened circuit in a series of loads, say for example LEDs in series. An SCR can also provide power control by turning off part of an AC cycle.

A zener diode, for smaller amounts of voltage regulation.

Opoto-isolaters

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.

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

Edge triggered flip flop are of two types 1. Positive edge triggered flip flop-In a pulse train when ever the input is changing its state from negative edge to positive edge then it will be consider...

AMPLITUDE MODULATION: The amplitude of the carrier wave(high frequency wave) changes according to the instantaneous amplitude of modulating signal(message signal or base-band signal). The combined wav...

Modulation is a process in which one going to change some properties (amplitude, phase) of the carrier with respect to the message signal. in amplitude modulation change the amplitude and in angle mod...

Biasing in electronics is the method of establishing predetermined voltages or currents at various points of an electronic circuit for the purpose of establishing proper operating conditions in electronic components.

Biasing is done for the linear operation of the device, since transistors give exponential response to the signal there exists a region where transistor gives near linear amplification of the input signal.

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..

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

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.

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...

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...

geometry, direction for example.

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...

Yes, by using the known impedance load at the output

To save time of the execution

8086 has 20 address lines and 16 data lines and supports HARVARD architecture as compared to 8085 which has 16 address lines and 8 data lines, so 8086 has higher index and thus accessing large memory, also the operating speed of 8086 is greater due to presence of instruction queue.

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

One is for the VCC & another one is clock issues

It is called a passive element because it does not generate any power on its own,it radiates the input power for transmission of signals

Device which are not require any external voltage(Biasing) for its operation is called Passive device or Device without junction is called Passive device. Antenna is a without junction device as well as these no external voltage required for its operation. So antenna is a Passive device.

Von-Neuman or Princeton architecture

It is having von neuman architecture.

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.

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.

ideally inputs of op amp are short and if we apply voltage on one terminal then its mean after resistance the input terminal of op amp is also virtually connected to other terminal which is grounded. DUE to its high input resistance.

Ideally the gain of opamp should be infinite. If I ground any one of the terminal of opamp intentionally say V1=OV, then as per ideal opamp having infinite gain. gain=Vout/Vid since, Vid=V1-V2 so a...

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...

first write 1 then 1 EXOR 1 then 1 EXOR 1 THEN 1 EXOR 1
so answer is 1000

Q: Where we use binary to Gray code and vice-versa...?

Which is operated by main memory

Correct answer is motherboard.