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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
How much are 5400 Milli ampere hour in ampere hour?
There is a thousand milliamps in an amp. So it would be 5.4AH.
What is the discovery of Georg Simon ohm?
Georg Ohm's Discoveries
Georg Ohm, German mathematician and physicist, began his important publications in 1825.
In his first paper published in 1825, Ohm examines the decrease in the electromagnetic force produced by a wire as the length of the wire increased. The paper deduced mathematical relationships based purely on the experimental evidence that Ohm had tabulated.
In two important papers in 1826, Ohm gave a mathematical description of conduction in circuits modelled on Fourier's study of heat conduction. These papers continue Ohm's deduction of results from experimental evidence and, particularly in the second, he was able to propose laws which went a long way to explaining results of others working on galvanic electricity. The second paper certainly is the first step in a comprehensive theory which Ohm was able to give in his famous book published in the following year.
What is now known as Ohm's law appeared in this famous book Die galvanische Kette, mathematisch bearbeitet(1827) in which he gave his complete theory of electricity. The book begins with the mathematical background necessary for an understanding of the rest of the work. We should remark here that such a mathematical background was necessary for even the leading German physicists to understand the work, for the emphasis at this time was on a non-mathematical approach to physics. We should also remark that, despite Ohm's attempts in this introduction, he was not really successful in convincing the older German physicists that the mathematical approach was the right one.
As stated above, this work included "Ohm's Law" theory: The relationship of a current passing through most materials is directly proportional to the potential difference applied across the material.
Although Ohm's work strongly influenced theory, at first it was received with little enthusiasm. However, his work was eventually recognised by the Royal Society with its award of the Copley Medal in 1841. He became a foreign member of the Royal Society in 1842, and in 1845 he became a full member of the Bavarian Academy.
The ohmmeter differs from other types of meters in that it has its own?
Electric supply, usually a battery.
How install a 4 leg LED in a circuit?
An LED with 4 leads is most likely a 3 color RGB LED with one common anode lead an 3 separate cathode leads (one for the red LED, one for the green LED, one for the blue LED). If so it should be installed as 3 individual LEDs.
However, this may not be the case. It may be a special device containing an IC and one or more LEDs controlled by that IC.
In either case you will HAVE to consult the manufacturer's datasheet to correctly identify the function of the leads prior to installation (which I almost automatically assumed was obvious and forgot to mention... until I reread the question and realized that anyone that would even bother to ask such a question probably doesn't even know that datasheets exist, or they would have already answered the question themselves by reading the datasheet).
What will happen if increase the input current of an inductor in RL circuit?
Since the equation of an inductor is ...
di/dt = v/L
... then increasing the current in the RL network would cause a back-emf in the inductor that would initially seem to oppose the series current.
More correctly, the question should ask "what if the voltage were increased?"; and the answer is that the rate of change of current in the inductor would increase, but the current would not initially change.
This is the case for a series RL.
For a parallel RL, increasing the current would initially show up as an increase the the current through the R, increasing voltage in the L, with the same effect as noted above.
How far can you run 102 wire without voltage drop?
I assume you mean 10/2, as in 10 awg, 2 conductor copperwire? The answer is zero feet. Any time you run a current through a wire, there is voltage drop, no matter how short the wire is. The longer the wire, the larger the voltage drop will be. What you really want to know, I think, is how far you can run 10 awg wire and stay within the acceptable limit of voltage drop. In the US, the National Electrical Code recommends no more than 3% voltage drop for a branch circuit. In this case the maximum run of 10 awg wire (assuming a 30 amp breaker and a 120 V circuit) would be about 48 feet. If the maximum load is less than 30A, then the run could be longer. For instance, if the max load were 15 A, the max run would double, to about 96 feet. If the supply voltage is 240 V instead of 120, then the run length is double the above figures.
What is horizontal deflection?
The term horizontal deflection refers to how much something deviates from the horizontal line.
Can you generate electricity from a ceiling fan?
Take it apart there r. 6 cables depending the model.take out the alluminiun ring and replace it with rare earth pgm magnets. At Amazon there ten for like for 12$ and 2 bridge rectifier .that's all u meed if u need mote help email me at bryanflores295/ at/ gmail /dot.
What has the highest output voltage because of the lower voltage drop between peaks?
A halfe-wave rectifier
What is media bias and why is it important?
Media bias refers to the tendency of news outlets to present information in a way that favors one perspective over others, often influenced by their ownership, political affiliations, or audience demographics. It is important because media bias can shape public opinion, influence political decisions, and affect the overall trust in journalism. Recognizing bias helps consumers critically evaluate information, fostering a more informed and engaged citizenry. Understanding media bias also encourages diverse viewpoints, promoting a healthier democratic discourse.
MCD stand for "millicandela" or 1/1000 of a candela.
This a unit of light energy of a single color, and in a single direction. For example: if you stand a few feet from a 100W light bulb, your eyes will get about 120 candelas of brightness reaching them--that's 120,000 MCD.
The little LED's you see on cell phones may be about 20 or 30 MCD.
This is a very rough idea of what it means. For a more formal explanation, go to http://en.wikipedia.org/wiki/Candela and read all about it.
1000cm
Any capacitor that is initially uncharged, when presented with a step change in voltage, will have an instantaneous resistance of zero ohms. As a result, the instantaneous current with a circuit involving 4500 ohms and 500 volts will be about 0.111 amperes. It does not matter what the capacitance is.
The stated voltage in the question is unclear, so 500 volts was assumed for the answer.
Is it possible to get a voice activated coundown timer?
A: Of course is possible need three assembly. A sound detector, clock and of course a digital counter.
A light emitting diode - LED.
What is the marking 5A 250VAC24VDC on a relay means?
The switching circuit is 24 Volts DC which connects a circuit of 250 Volts AC with a limit of 5A current.
Note: This is presumption based on how a relay works and its purpose.
Why you measure resistivity and not resistance in four probe method?
Resistivity is a constant for a material as opposed to resistance which is dependent on size considerations. This is analogous to specific heat capacity and heat capacity. It can be said that resistivity is more useful for comparison because other factors (size) have been accounted for.
In the case of using the four-probe method to measure the thickness of a thin film:
ρ = (V/I) x (thickness of film) x (correction factor)
We measure the current and voltage using the four-probe method, from which we can get the resistance between the probes. Knowing the resistivity, which is constant for the material and can be obtained from sources such as books, will enable us to relate the resistance to the dimensions of the film.
Advantages of h bridge over other bridges?
h bridge can used as to supply the power in both directions
What is more damping torque or controlling torque?
Following are the essentials of indicating instruments: 1. Operating torque, 2. Controlling torque, and 3. Damping torque. OPERATING TORQUE Operating torque is produced by making use of any of these effects: magnetic, electromagnetic induction...., it is required to move the moving system of the instrument. CONTROLLING TORQUE Controlling torque opposes the operating torque and increases with the deflection of the moving system. It ensures that the deflection of the pointer is according to the magnitude of electrical quantity being measured. If this torque were not provided, the pointer would continue to move indefinitely and the deflection shall be independent of electrical quantity being measured. It also bring the pointer back to zero when the instrument is removed from the circuit. This torque is either obtained by spring or by gravity. In spring control, one or two phosphor bronze spiral hair-springs are attached to the moving spindle. The other end are attached to the frame. In this case Tc proportional to Angle of deflection. In gravity control, a small weight is attached to the moving system in such a way that it tries to bring the pointer back to the zero position when it is deflected, due to gravity. In this casse Tc proportional to sine of the angle of deflection. DAMPING TORQUE Controlling torque controls the deflection and tries to stop the pointer at its final position where its Td = Tc But due to inertia, the pointer oscillates around its final position before coming to rest. Hence damping torque is provided to avoid this oscillation and bring the pointer quickly to its final position. Thus the damping torque is never greater than the controlling torque. In fact it is the condition of critical damping which is sufficient to enable the pointer to rise quickly to its deflected position without overshooting.
How does a voltage quadrupler work?
A Voltage Quadrupler would be a DC circuit. A transformer would be used to increase the voltage in an AC circuit.
To quadruple the voltage in a DC circuit would consist of (min) 4 resistors. 1 resistor would be directly in parallel with the power source, that is, one side of the R would be connected to one side of the source, and the other side of the R would be connected to the other side of the source.
The remaining resistors are configured in a sort of series/parallel with the 1st resistor to increase (ladder fashion) the output voltage. See the related links for a more detailed explntn.
If the decrease voltage and the resistance stays the same is current increased or decreased?
This question follows Ohm's law which states, "Current is directly proportional to the applied EMF (voltage) and inversely proportional to the current in the circuit.
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decreased
