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Electronics Engineering

Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.

24,372 Questions

What will happen to the current or voltage if AC circuit contains both resistance and inductance?

If ther is a resistive load we got curent and voltage in phase. If the load is inductive curent lags behind the voltage. IN THIS CASE THER IS BOTH LOAD THAT MEANS CURENT WILL LAG BEHIND THE VOLTAGE

What is avalanche voltage?

Avalanche voltage is the voltage value that causes a reverse-biased semiconductor junction to break down and conduct. Sometimes this is undesirable. A rectifier diode in a power supply that avalanches has failed. It can also be desirable. A Zener diode used as a regulator works by avalaching at a specific voltage, thus limiting the circuit voltage at that level.

Is 2.4 GHz or 5 GHz a license free wi-fi band in India?

It is free in India It's an open frequency

source :http://www.wpc.dot.gov.in/

What is the meaning of N P N?

An NPN device is a bipolar transistor formed by two opposing PN junctions in close proximity.

Another answer

NPN indicates that the transistor has Negative Positive Negative substrates

What is a weather radar?

A weather radar is a type of radar used to locate precipitation, calculate its motion, estimate its type (rain, snow, hail, etc.), and forecast its future position and intensity.

What is a nano device and what is the definition for nanodevices?

Nano means a very tiny things that size approximately 1 to 100 Nanometers and devices means that can caries or hold other things.so nanodevices are 1 to 100 nm in size and which can helps to caries or transfer the materials or information one place/cell to other.

What type of actuators are used in robotics?

There were many types of actuators that are used in robotics, some of which are hydraulic actuator, ultra-piezoelectric, pneumatic actuator and piezoelectric. The actuator is an electromechanical device that converts energy.

7 Please list all the dopant which is classified under n-type p-type?

  • The p-type dopant elements are: boron, aluminum, gallium, and indium.
  • The n-type dopant elements are: nitrogen, phosphorus, arsenic, and antimony.

What is the difference between AC machine and DC machine?

ac machines can run only in one direction but dc machines can run in both the directions depending upon the direction of current flow into it. If we change polarity of input supply we can reverse the direction of motion of dc machine

Comment

The above answer isn't altogether true, as it's very easy to change the direction of an AC machine. For example, to change the direction of rotation of a three-phase induction motor, the motor controller interchanges two of the three line conductors.

The main difference used to be that the speed of DC machines is easier to control, but that is a thing of the past thanks to developments in electronic motor controllers.

What is load shadding?

Load Shedding is the action taken to reduce the load on something. It mainly refers to the electricity supply in order to avoid too much load on a generating plant.

Two zener diodes are conected in parallel of vz6.25.1 in opposite polarity across them a 10v dc supply is connected what is the output why?

What the heck is the vz6. Zeners can protect overvoltags from damaging circuits. Two reversed zeners control AC currents.

What is ghost image?

A ghost image is one that you can look at. There are often ghost images that help people see what a puzzle should look like.

Why the carrier for the amplitude modulation must be a sinusoidal waveform?

The wave in amplitude modulation must be a sine wave. A sine wave represents smooth repetitive oscillation, which is necessary for this process.

What is impedance matching?

making impedances identical.

when done between supply and load it is done to maximize power transfer.

when done on cables and busses it is done to prevent or minimize signal reflections. a low impedance mismatch reflects an inverted signal, a high impedance mismatch reflects an inphase signal.

What is intermediate frequency?

In communications and electronic engineering, an intermediate frequency (IF) is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. [1] The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process calledheterodyning, resulting in a signal at the difference or beat frequency. Intermediate frequencies are used in superheterodyne radio receivers, in which an incoming signal is shifted to an IF for amplification before final detection is done. The intermediate frequency stays the same for all signals, for example 455 kHz in an AM broadcast receiver.

Conversion to an intermediate frequency is useful for several reasons. When several stages of filters are used, they can all be set to a fixed frequency, which makes them easier to build and to tune. Lower frequency transistors generally have higher gains so fewer stages are required. It's easier to make sharply selective filters at lower fixed frequencies.

Precautions to take after a lightning storm?

There are many precautions you can take after a lightening storm. You could go out and seek immediate shelter for example.

What is the definition of m in m derived filters?

m in m derived filters refers to its association with the midpoint impedance

What is a stand by current?

Standby current is the current that a device draws when it is not actively performing its function. This current would be measured in amperage, and commonly amperes, milliamperes or microamperes would be the units of measurement. As an example of a device drawing standby current; a radio transmitter may not be actively transmitting, but the power supply is turned on, and the transmitter is ready to operate. In this case, the transmitter is drawing very little power. A computer can be in standby mode and drawing "standby current" , examples of which are also "hibernation" and "sleep" modes. The computer display and hard disk drives are turned off, and the CPU is throttled down to low power state. However, memory is kept active, which requires just a small amount of battery power.

What are the correct steps to use a chassis punch?

First drill the pilot hole normally an 8mm put some oil on the die and mandrill, split the die and mandrill and insert the bolt with the die in the pilot hole insert the mandrill on the opposite side and screw the bolt until the hole is finished