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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 are the advantage of transistor over vacuum tube?
- lower power dissipation
- higher reliability
- lower operating voltage
- instant on (no heater warm-up time)
- smaller size
- lighter weight
- more rugged
- more efficient
- possible to integrate with other devices into one package
- etc.
Application of pn junction diode:
1.)It Can be utilized as rectifier as a part of DC Power Supplies.
2.)In Demodulation or Detector Circuits.
3.)In clasping systems utilized as DC Restorers
4.)In section circuits utilized for waveform era.
5.)As switches in computerized rationale circuits.
What are the uses of the Desoldering pump?
Removing solder so that a component can be removed for testing or replacement.
How much will a TDA1554Q IC cost?
That depends on how much your jobber prices it at and how many you want to buy (the more you buy the lower the per unit price).
What is the value of R in ohm?
The value of resistance ( R ) in ohms (Ω) can be determined using Ohm's Law, which states that ( V = I \times R ), where ( V ) is voltage in volts and ( I ) is current in amperes. To find ( R ), you can rearrange the formula to ( R = \frac{V}{I} ). Thus, the specific value of ( R ) depends on the given voltage and current in a particular circuit.
A chopper or DC-DC converter is a circuit or technique used to convert a constant DC signal into a variable DC signal where by using switching technique known as PWM(pulse width modulation). A chopper is a static device that converts dc input into dc output voltage directly. A chopper may be thought of as an ac transformer since they behave the same.
How you reduce capacitor size while keeping the capacitance?
You can reduce the size of the plates (thus making the capacitor smaller physically) if you also do one or both of the following:
- move the plates closer together (which also reduces size, but lowers the breakdown voltage)
- use a dielectric with a higher dielectric constant
Of course these changes must be made at the time of manufacture, they cannot be done to change an existing capacitor.
When transistor acts as an amplifier then does its output voltage increase or decrease?
That depends on both the input signal and the type of amplifier the transistor is used in.
Why aren't inductors used in timer circuits?
Mostly because large value capacitors are less expensive and smaller than large value inductors.
Does resistor has stray capacitance?
Yes, all electronic components have both stray capacitance and stray inductance.
Because its a microcontroller with an 8 bit data bus width.
What are p type semiconductors?
P type semiconductors have been doped with trivalent elements, causing them to conduct via "hole" flow.
N type semiconductors have been doped with pentavalent elements, causing them to conduct via electron flow.
The reactance of the capacitor is 0.339 ohms, therefore the total impedance is sqrt(4002+0.3392) = 400.0001 ohms. So the resistor drops very nearly 20 volts, very slightly less.
Why the power must be off when checking the resistance in the circuit?
an ohmmeter contains its own power source that it uses to test the circuit. if power is still on in the circuit, at the least the meter will give incorrect readings, at the worst the meter may be damaged rendering it useless.
How do you test led luminous flux?
When you want test led or others lighting luminous flux, according to CIE and others relevant standards, there have two way; one is use integrating sphere and spectrophotometer test system, this way is economic measure solution, and the test result have high accuracy, most of will use LPCE-2 High Pescision Spectroradiometer Integrating Sphere System, this instrument suitablle most of light manufacture and some test lab; another way is use Goniophotometer, this one main for test Optical Parameters, like total luminous flux, light distribution intensity cruve etc and export IES files, this test solution will be more expensive than LPCE-2 Test System, but this one is very important and necessary for all manufacture and national test lab, third party lab etc, and mose of user will choice LSG-1800B High Precision Rotation Luminaire Goniophotometer, this one have higher cost performance cost, and export IES files.
Where can havaiana flip flops be bought?
There are a number of stores that sell Havaiana flip flops. These include the official Havaiana website, Amazon, the auction site eBay, ASOS, John Lewis and JD Sports.
Would running a 200 amp panel be more costly if improperly grounded?
The higher the resistance to ground, the more voltage/current has to flow to make up the difference. A good reference to ground should have a total impedance of 25 ohms or less. Improper grounding also results in excessive heat generation and may quickly become a fire hazard.
How does a PIC programmer work?
Perioheral interface controller or PIC programming works by allowing one to program micro controllers. PIC programming will allow flash memory to be programmed to other devices.
What is the frequency range used on all audio receivers?
The frequency range used on all modern audio receivers is 10.7 to 12.75 GHz. The IF range is 950 to 2150 MHz. Audio receivers are also known as radios.
Need replacement resistance bands for Dynaflex?
I have aVoit Dyna flex exercise mach and the bands have all broken over the years and now I have none.
What particles move during an electric circuit?
Neutrons. (In type ax1, ay1 is varied due to voltage and amp conditions.)
