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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 happen if all the diode in bridge rectifier is reversed?
it will work as a rectifier . because the AC current to be rectified will not be effected by this change. the out put DC polarity will be changed.
Can we use inductor in DC circuit?
Yes, but only in a transient manner. Inductors do their "magic" in AC circuits, presenting an inductive reactance that appears as resistance. In a DC circuit, an inductor will simply ramp up current until one of the circuit limits is exceeded, at which point either nothing further will take place, or something will get damaged.
In the worst case, of an ideal inductor with an ideal power source, with ideal conductors, the current will linearly ramp up to infinity.
Don't misunderstand. We do use inductors in DC circuits. The most common use is as a relay or solenoid, or a DC motor, but there is also resistance or time limits involved which places a limit on the steady state current.
Voltage stabilizer is use to regulate the voltage the output of any device
Techniques required for increasing the input impedance?
...of what? to a house, to a breaker (to lower fault current level?), to an amplifier circuit?
Can you use a VHF radio to call a walkie-talkie?
A walkie-talkie refers to a portable radio. VHF range is usually 136 to 172 mhz and a portable will pick up if tuned to this range.
Can you replace lower capacities on capacitors?
No unless it a large industrial one, and if you could it would not be cost effective
Can you write ohms law v equals IR in matrix form?
Yes you can... and its handy for solving Kirchoff's law mesh equations
[V] = [R].[I] (that's [R].[I], remember order is important when multiplying matrices)
An electrical circuit that combines capacitance and inductance in such a way that a periodic electric oscillation will reach maximum amplitude
What is the function bushes in transformer?
A bushing is a hollow insulator, through which a conductor passes. Bushings are used to provide a external/internal connection in a transformer, circuit breaker, etc.
It is a micro controller used in various applications of embedded systems
What is epitaxy in IC fabrication?
Its the ordered growth of a material on the same material such that there vl be no any type of mismatch in their interface.
How to perform SMPS with circute diagram?
A switched-mode power supply (switching-mode power supply, SMPS, or simply switcher) is an electronic power supply that incorporates a switching regulator in order to be highly efficient in the conversion of electrical power. Like other types of power supplies, an SMPS transfers power from a source like the electrical power grid to a load (e.g., a personal computer) while converting voltage and current characteristics. An SMPS is usually employed to efficiently provide a regulated output voltage, typically at a level different from the input voltage.
Unlike a linear power supply, the pass transistor of a switching mode supply switches very quickly (typically between 50 kHz and 1 MHz) between full-on and full-off states, which minimizes wasted energy. Voltage regulation is provided by varying the ratio of on to off time. In contrast, a linear power supply must dissipate the excess voltage to regulate the output. This higher efficiency is the chief advantage of a switch-mode power supply.
Switching regulators are used as replacements for the linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated, their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
What waves are used in remote controls?
Remote controls use both infrared and radio frequency technologies. Your typical TV remote uses infrared and your typical car remote uses RF.
How are IR rays produced in transmitter circuit of IR alarm?
when an electron drops from a higher energy state to a lower it emits a fixed frequency photon
Gallium Arsenic Silicon Carbon have bright lines in a band of infrared can be varied colors depending on proportions
this is monochromatic IR
if you put parallel mirrors on either side of the the activated atoms you get a laser
co2 gas laser ... Led Solid laser
although IR is produced by burning sugar in a body and digital cameras can see that too
What is the volt drop across a 10k resistor with a 5 volt supply?
If there is nothing else in the circuit, then the voltage drop across the resistor will be the full supply voltage of 5 volts. The size of the resistor does not matter in this case - it will always be 5 volts.
Do you carry a device for sending tspi from a radar for point and other radar?
NetAcquire makes systems that do that.
How many electron volts are there in one joules?
1 eV is 1.6x10-19 Joules.
So, 1 Joule is 1 / 1.6x10-19 eV
Why you can't usually swap bulbs between series and parallel sets of lights?
If it is in the same circuit, the voltage would not be the same.
ANSWER: That is possible if both bulbs have the same rating of volts and amperes
What are the characteristics of a microphone?
1) signal to Noise ratio
2) output level
3) sensitivity
4) frequency response
5) Distortion
6) output Impedance
7) Directivity
A: The relationship is that the current will divide for each paths in a parallel circuit and the voltage drop across each will be the source voltage.
In a series circuit the current will remain the same for each component but the voltage will divide to reflect each different component value. And the sum of all of the voltage drops will add to the voltage source.
