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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 5 parts of a Volt Ohm Meter?
Test Prod Scale meter Zero corrector Zero Ohms adjust Scale selector
A rain alarm is a device or sensor that predicts about rain or snow before the rainfall. The device provides you an alarm before the rain start, which allows you take your things inside from open, or close the windows.
What is the medium that connects the receiver to the transmitter?
Any number of things can stand between a transmitter and receiver and "connect" them. If we're talking about electromagnetic radiation (like radio waves), these signals can move through the vacuum of space, through air, or through a number of other materials. Metals and other substances that are good conductors will be resistant to penetration by or will stop radio waves. The frequency of the electromagnetic radiation will have something to do with what it will "go through" to allow it to be "connected" to a receiver.
There is one thing to remember in parting: electromagnetic radiation does not need a medium through which to travel. It carries the energy of the radiation "with it" when it goes. That allows this form of energy to move through the vacuum of space. Compare this to something like a sound wave, which is mechanical energy. With waves that are mechanical energy, the medium through which the wave moves must carry the energy of that wave. Said another way, the source of the mechanical energy must put its energy into the medium for that medium to propagate the wave.
How does rectification take place?
Type your answer her
rectification takes place due to diode in rectifiers in a hwr only one diode presents it conducts during positive half and give dc out put. in fwr four (or) two diodes will presents based on type but the give both half cycles output
ANSWER: A diode will pass an AC voltage trough only one way and refuse to pass the the other half of the AC signal. With just one diode the output will be the AC voltage minus the .7 v drop by the diode this output is called pulsating DC since it has no other component from the AC components in its output. It does no matter which side is rectified the + or the - the result will be either + or - pulsating DC.
Why are super cooled metals good conductors?
Super cooled metals are good conductors because their super cooled properties allow them to conduct electric currents without resistance. This means no loss of energy.
Anderson's bridge used to measure self inductance?
we can find the value of inductance varying two varient resistance r & R by stoping the voic of beep in anderson's bridge
then
L=CR(Q+2r)
here C & Q are fixed capicitance & resistance in bridge..........
What is the working principle of a condenser?
A condenser rejects heat to the environment to turn vapor into liquid. Ideally a vapor enters the condenser as saturated vapor, meaning it's at the boiling point. The vapor condenses and leaves the condenser at saturated liquid (also at the boiling temperature).
Is a capacitor a device specifically designed to measure currents?
No, a capacitor is a device that resists the change in electrical potential. It will take and hold a charge based on the value of the capacitor. It's most commonly used to "smooth" direct current or to pass a signal through a wire while passing very little current. There are some interesting circuits produced using capacitors, especially since the capacitors have so many unique properties.
Power electronics is the study and application of electric switches and devices to control and convert electricity that is used as an energy source. This type of technology is important in building and maintaining switches and power supplies and other small mechanical devices.
either one could. it depends witch one you unscrew first.
What is the maximum voltage on the secondary side of the transformer?
Transformers come in very many varieties and voltages. Transformers have ratings regarding the electrical power that they are connected to. The most important ratings are voltage, power and current. In general the insulation level and number of windings in the secondary and primary determine the maximum rated voltage, and the size of the magnetic wire that makes up the windings, and mass of the iron core, determines the rated power and rated current.
It is the insulation level therefore, that determines the maximum, safe voltage that can occur on both the secondary side and the primary side. The turns ratio between the primary and secondary coils of the transformer determines the secondary voltage with respect to the primary voltage. If the primary coil has 1000 turns, and the secondary coil has 100 turns, the transformer turns ratio (usually designated by the letter "a") is 100 / 1000 = 0.1. If a = 0.1, then if 1000 volts are applied across the primary coil, ideally, 100 volts will be measured across the secondary.
Transformers have been manufactured with secondary voltage ratings in the range of millivolts, to 1,000,000 volts.
What is Sink and source mode of transistor?
Source mode at output provides safety than sink at output
Compare kirchhoff's voltage law to ohm's law?
Kirchoff's voltage law states that the sum of the signed voltage rises in a series circuit adds up to zero. A consequence of this is that the voltages across elements in a parallel circuit are equal to each other.
Ohm's law states that voltage is equal to resistance times current.
The two laws can not be compared, because they talk about different things. They are, however, tools that can be used together, along with other laws such as Kirchoff's current law, and Norton and Thevanin equivalents, to perform circuit analysis.
Another AnswerThe simple answer is that Kirchhoff's Voltage and Current Laws are universal, and apply under all circumstances, whereas Ohm's Law is not really a 'law' at all! There are very few circumstances in which Ohm's Law applies and, in my opinion at least, should no longer be taught.When a light bulb is rated for 3.2 V it means that it is the maximum operating voltage to be applied to the bulb.
What is a common mode amplifier?
I'm not sure there is such a thing as a "common mode amplifier". The common mode rejection ratio (CMRR) of a differential amplifier is very high, and is defined as the ratio of the differential amplification divided by the common mode amplification. The common mode amplification is what you get when both inputs are tied to the same signal. Ideally, this amplification will be zero, but in reality it ends up being some very small amount for well designed amplifiers.
This is a beneficial trait for audio equipment which use a positive, negative, and neutral connection (balanced cables, such as microphones). Noise signals will naturally couple to these cables. The assumption is these noise signals will couple nearly identically to both the positive and negative signal wires, so when applied to the amplifier, this common mode signal will not be amplified, while the desired signal (which is created so that the positive and negative signals are opposites) is amplified.
What is diode peak current in 12 volt power supply?
A: Diodes peaks current can exceed the forward steady sate current by a big factor for a short time without destroying itself. It will destroy itself if the power dissipation is exceeded. The answer to your question is the peak voltage has absolutely nothing to do with a 12 volts power supply or any other voltage power supply it has to do with the diode itself
What is meant by monostable multivibrator?
A monostable multivibrator is a circuit which produces a single pulse of specified duration in response to each external trigger signal.
Can the 2.2 microfared 250V capacitor be charged with 12V dc source?
Yes. The 250 voltage is a not-to-exceed rating.
What is the difference while applying kcl to dc and ac circuits?
KCL is Common to both AC and DC. Only the waveform or AC and DC will differ
Why sillicon diode is used in most of application?
silicon is the most commonly used semiconductor. As it is abundant and inexpensive. However, it also has the advantage of a great oxide layer (silicon dioxide) which serves as as dielectric in many applications, and as a result it is relatively easy to make devices out of Si. It's this oxide layer that makes silicon more common than germanium, which does not readily form an oxide layer because Ge has less affinity with oxygen when compared to Si, even though the there are many charge carriers in Ge as compared to Si its the ability to form the oxide layer which makes Si more preferable than Ge
Are the lights in your school connected in series current or parallel current?
Overhead lights are typically connected in parallel. If they were connected in series, then, if one light went out, all of the lights would go out.
Think of Christmas lights, they are connected in series. When one of the lights burns out, the whole string of lights goes out.
What does it mean to oscillate?
I would say that it might be like switching from one form of reality into another. Like from one dimension to another. To oscillate from one dimension to another. To switch. Like you would press a button on a remote control to change a television channel to another one. You would oscillate/switch from one to another.
basic cruise control but the speed maintained is controlled by radar sensors. the car decelerates when a slower vehicle pulls in front and the accelerates when the road is clear.
ANSWER: above is not quite right it does provide a safety margin of distance from an object. I will accelerate but only to the previous set speed.
