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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 the magnitude of the impedance of a series AC circuit w resistance of 6 Ω an inductive reactance of 17 Ω and zero capacitive reactance?

Since inductive reactance is 90° out of phase from pure resistance, this can be calculated like the hypotenuse of a right triangle. Sqrt( 172 + 62) = 18.028 Ω

The angle is 70.6° lagging.

What are the various potentials used in antenna theory?

scaler electric potential

vector magnetic potentials

retarded potentials

Explain how Zener Diode is used as a voltage regulator?

A zener is a diode that has the property when reversed bias to breakdown at a specific voltage this voltage will remain constant as current increase. It is important to be aware that the diode will need to dissipate heat while it is operating. The power is the current flowing through the diode multiplied by the voltage across the diode. For zener diodes with a high reverse breakdown voltage, it can be seen that a lot of power may need to be dissipated for a relatively low current.

We can use the constant voltage as a reference voltage. Either a component can be powered directly from the reference voltage created or additional components can be used to increase the available current.

Does it matter what order circuits are connected?

Sometimes it matters and sometimes it doesnt, it depends on what kind of product you are talking about and I don't have that information, so its impossible for me to guess whether it needs to be on a certain order or not.

Examples of plc?

Your mother is a good example, anyone can buy her...

I heard she slept with your mate Sam for a packet of biscuits

What is Wireless transmission system?

A wireless transmission consists of at a minimum: input signal (the data or analog signal you wish to transmit), transmitter, 2 antennas, space (the final frontier) and a receiver/reproducer.

This only makes one way transmission possible. You would need an additional: transmitter, receiver/reproducer and 2 antenna couplers (allows both a transmitter and receiver to use the same antenna) to have 2 way communication.

A basic transmitter consists of a power source, a signal generator (oscillator), signal converter/amplifier, mixer (mixes the oscillator and amp signals to create the transmitted signal), output amplifier.

a receiver is similar to a transmitter except instead of mixing the signal with the oscillator signal it removes the oscillator signal. Systems can be much more complicated depending on power needs (distance between antennas, frequency interference...) and application (encoder/decoder, security or digital conversion).

What happens if a circuit has no resistance?

Then the voltage in will equal the voltage out. The purpose of a resistor is to reduce the amount of electrical flow of current.

You 'short out' the supply and blow a fuse/circuit breaker.

How do you get two bright lights and one dim light without a resistor?

1. Use 3 lightbulbs, with a 3 way switch.

2. Use 1 3-way lightbulb with a 3 way switch.

3. Use a diode in series with one bulb to dim it.

4. Use a silicon-controlled rectifier (SCR) with a simple circuit to cut out a certain percentage of each AC wave.

Is eeprom power ic?

Yes.... Electrically Erasable Programmable

Damping in circuit theory?

Damping in circuit theory refers to the reduction of oscillations or fluctuations in an electrical circuit, typically due to the presence of resistive elements. It can affect the transient response of circuits, such as in RLC (resistor-inductor-capacitor) circuits, where damping determines whether the response is underdamped, critically damped, or overdamped. This behavior influences how quickly a circuit settles to its steady state after a disturbance, impacting applications like signal processing and control systems. Damping is crucial for ensuring stability and performance in various electronic designs.

What is an analog address?

An analog address is a reference point used in analog systems to identify specific locations or values within a continuous range, such as voltage levels or physical positions. Unlike digital addresses, which represent discrete values, analog addresses can vary smoothly and can represent an infinite number of states. They are commonly used in applications like analog signal processing, where signals vary continuously over time.

What is vhf wideband amplifer?

"wide band amplifiers are those amplifiers which amplify ah a higher band width or in short the frequency range is very wide.. by VHF indicates Very High Freaquency- denotes hiher ranges of freaquency 30MHZ to 300 MHZ these amplifiers are working on these reagions so as we need amplifiers of these range normally the internal capacitace of high freaquency switching will affect the freaquency due to internal juction capacitance(MILLER CAPACITANCE)will attenuate the freaquency so much. to avoid this problem we have to use the high freaquency transistors. normally BFW195 are used for small range of aplications commonly" WITH LOVE MADHAV "MADHAVNAMBIARCK@YMAIL.COM"

When is the Op amp said to be working in its linear range?

it is when the feed back resistance is been connected between the inverting input

and the out put

For 10V electrolytic capacitor how much peak to peak voltage signal can be applied?

Make sure you're using a non polarized electrolytic capacitor, otherwise it isn't going to work well.

I'm not sure, but I would say you should be able to apply the same RMS AC as it is rated for DC:

AC Peak - Peak = RMS AC / (2*sqrt(2))

What does am frequency stand for?

AM stands for Amplitude Modulation. In theory, amplitude modulation could be applied to a radio signal on any frequency but the AM band on most domestic radios stretches from 530 to 1700KHz.

What is difference between digital and IP phone?

IP phones with color liquid crystal display (LCD), including dynamic soft keys for call features and functions.It is capable to customize XML-based services to let users access a variety of information, such as stock quotes, employee directories, and web content.Digital phones is simply VoIP or Voice over IP. This specifically refers to the service where your voice, over either a PC or telephone, is transmitted digitally over the internet and is able to break into a phone company's telecom service.