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Most active electronic devices (devices that amplify or switch states, e.g. vacuum tubes, transistors) only operate when conducting in one direction. If the current reversed periodically (as it does in AC) these devices would either not work at those times or would do something much different than they were designed to do. Thus DC is needed to keep them operating all the time.
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Why electronics is important?
It's not. You'll never need it.
What is electronic bottleneck?
Electronic bottleneck refers to the inability of electronic devices to process optical data at very high speeds. The term is used mostly when trying to justify the need to process ultra high speed data using all-optical devices without the need for optical-electrical-optical conversion.
Why low power VLSI technology is preferredover VLSI technology?
Low power VLSI is preferred over VLSI.It is because of the following reasonsIt consumes less power i. e. the power consumption is lowThe power dissipation is also lowmost of the modern devices need to operate at low powerComplex systems can be designed with reliability as the power consumption is low.We use modern electronic devices like mobiles ans robotics. These are generally compact and movable. Hence, they operate with a battery rather than power connection. Hence, we need low power operation.
Advantages of parallel circuit?
A parallel circuit can run several devices using the full voltage of the supply, varying the current to the need of each device. If one device fails, the others will continue running normally. If the device shorts, the other devices will receive no voltage, preventing overload damage.A series circuit divides the supply voltage among the devices with a consistent current. If one device fails, all other devices in the circuit will either fail to receive voltage or receive too much voltage and become damaged in the case of a short.An advantage of parallel circuits is increasing the power rating of the circuit and reducing the resistance.
Do I need more then 70 kVA 3 phase power supply for a 4 sunbeds in a tanning salon?
You don't need three-phase power; tanning beds run on single-phase. You've got enough amps.
What is the difference between electronic devices and electrical devices?
All modern day computers are built using electronic or semiconductor processors and components, so these are electronic systems which of course need electrical power to operate but are not in general put under category of electrical devices.
I am travelling to Aus from Canada and I want to bring my laptop I know the voltage diff of 120 240V between the two All I can find is its an 18.5V DC or 19.0v DC Do I just need the plug adapter?
Check your power supply; the power supplies of most portable electronic devices are labeled for "100 - 240V, 50 or 60 Hz", which is alternating current. All electronic devices themselves operate on direct current, and the 18.5VDC that you are seeing on the laptop itself is from the power supply to the laptop. The power supply "rectifies" the alternating current to direct current, and steps down the voltage to whatever your device requires. So, you probably only need the plug adapter.
What is the syllabus for electronic circuits and electronic devices?
you need to be mo specific.
What FireWire connector must use a separate power supply?
No FireWire does not need a separate power supply to operate. FireWire is used to connect peripheral devices to a computer.
Why do you need power supply?
Power supplies are need by many electronic devices for several reasons. Most devices need one or more DC voltages. Only AC power is available at a common household outlet.Power supplies, among other things, usually must convert AC power to DC power.AC = Alternating CurrentDC = Direct CurrentVDC = Volts of Direct CurrentComputers, for example, need a power supply to convert 120 VAC line power to 6 VDC, 9 VDC and possibly 12 VDC. You will understand this more fully once you get further into the study of things like trigonometry, the calculus, basic circuit design, etc.
Why is a computer an electrical device not an electronic?
All modern day computers are built using electronic or semiconductor processors and components, so these are electronic systems which of course need electrical power to operate but are not in general put under category of electrical devices.
Why do you need a power supply?
Power supplies are need by many electronic devices for several reasons. Most devices need one or more DC voltages. Only AC power is available at a common household outlet.Power supplies, among other things, usually must convert AC power to DC power.AC = Alternating CurrentDC = Direct CurrentVDC = Volts of Direct CurrentComputers, for example, need a power supply to convert 120 VAC line power to 6 VDC, 9 VDC and possibly 12 VDC. You will understand this more fully once you get further into the study of things like trigonometry, the calculus, basic circuit design, etc.
What electrical supply do I need before installing an electronic marquee?
The type of electrical supply needed for an electronic marquee varies depending on the size of the marquee. In most instances, normal outlet power supplies connected with an extension cord should suffice. The electronic marquee, use LED for display> The electric consumption of LED is very low as compared to conventional lighting . You will not need any special or high voltage electric supply for installing modest level electronic marquee.
What type of devices would a voltage converter be used for?
Any type of device that would need to be converted from AC to DC power would use a voltage converter. Devices such as televisions, monitors, and other electronic devices could use a voltage converter.
Not all electronic devices are computer, discuss In details?
First you need to able to distinguish between electronic device and and computerize device. Electronic devices are device that needs power source (electricity) for operation. While a computer is an electronic device that accept data, process data and give an output base on the received input. Not all electronic devices are computer with the below key points. A computer have input unit, processing and output unit which other electronic devices do not have this features. A computer must be able to accept instructions, eg your mobile phones, calculators can accept instructions so they are computer because they have an input method. While an electronic device does not have any input method like your radio. You radio only need a power source to transmit sounds via electromagnetic waves, it doesn't have input, output nor processing unit
Why electronics is important?
It's not. You'll never need it.
What are the three things electronic hardware devices need in order to function?
An electrical system to provide power It needs software to instruct the device A method for the CPU to communicate with the device
