answersLogoWhite

0

📱

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

In which direction would a floating magnet move?

It would align itself with the magnetic North and South poles of the Earth.

How many amps is 4000 mha?

4000 ma is equivalent to 4 amps 1 amp is 1/1000 ma/hour means amp or ma per hour.

How does closed-circuit TV work?

Closed-circuit television (CCTV) is the use of television cameras to transmit a signal to a specific, limited set of monitors. It differs from broadcast television in that all components are directly linked, and that the signal is not openly transmitted, though it may employ point to point wireless links. CCTV is often used for surveillance in areas where there is an increased need for security, such as banks, casinos, and airports. They may also have military uses. The use of CCTVs in public places has increased, causing debate over security versus privacy. CCTV was developed as a means of increasing security in banks. Today it has developed to the point where it is simple and inexpensive enough to be used in home security systems, and for surveillance.

How do you find displacement?

Displacement= Volume x Density

for example to find the displacement of a ship you would do this formula:

underwater volume(m3) x density(t/m3)

so if you are a deck cadet like me this is the formula you would use to find the displacement of a ship in the first ship stability test!

THIS IS WRONG! THERE ARE MANY DIFFERENT TYPES OF DISPLACEMENT FOR-INSTANCE THOSE USED IN PHYSICS ALL HAVE DIFFERENT FORMULE

What is transistor noise?

http://www.vias.org/transistor_basics/transistor_basics_04_05_03.html

The minimum signal that can be applied to a transistor is limited by the internal noise generated by the transistor. Since the transistor does not require cathode heating (one of the major noise sources in the vacuum tubes), it is inherently capable of operating at lower noise levels than its vacuum tube brother. At present, the junction transistor is equal to the vacuum tube, insofar as its noise characteristics are concerned. The noise level of the point-contact types is between 15 and 30 db higher.

see the website, there is a lot more. do more research for certainty.

Why is output dc higher than input ac?

Output power can never be more than input power. With a transformer, it is possible to increase the output current (while decreasing the output voltage), or to decrease the output current (while increasing the output voltage).

What is the purpose of a test lead in a Multimeter?

So you don't have to put the whole meter on the circuit point. It's just a way to tap into the point you want.

What is the part of a circuit that connects or disconnects the circuit?

Switches, fuses and circuit breakers are examples of some of the electrical parts which can connect or disconnect a circuit to a source of current.

A diode does it for alternating current, but only for one half of each cycle.

"Connecting" allows an electric current to flow through the circuit. "Disconnecting" stops an electric current from flowing through the circuit.

How do you install a metal oxide varistor?

A varistor is installed onto the "line" and "Neutral" wires of an AC power input.

Added:

Maybe this will help you more: cf. Related links, just below this answer page.

The difference between holes and electron is that?

The electron, as modeled by Alexander Burinskii, is gravitationally confined however its ring singularity is described as "naked". The electron angular momentum is too great to allow complete gravitational collapse to its Schwarzschild radius. This means that its ring singularity is not hidden behind an event horizon and so is naked. It does not collapse to undefined or infinite density. It has some, but not all of the properties that a black hole is expected to have.

Further evaluation indicates electron gravitational collapse is halted at its gravitational photon orbit radius. This radius has a non-zero size so the undefined or infinite density problem is avoided.

Does a flashlight emit amplitude or frequency modulation?

A flashlight simply emits light. The light contains no information other than to provide light so people can see where they are going.

How will you describe the graph of resistance against current?

If resistance is high that time the current flow is low. Bcoz current always flow through the low resistance path.

What is bit synchronization in digital communication?

a bit synchronizer is a ckt which made at the receiver end at that time when a bit interval end and next starts.

What are the differences between emf and voltage drop?

emf and voltage

Answer

Electromotive force is the potential difference created by a source, such as a battery or generator, when it is not connected to a load -in other words, on 'open circuit'.

Voltage drop is the potential difference across a load, such as a resistor, which causes current to flow through that load.

A voltage drop occurs, internally, in batteries and generators, when they are supplying a load. The battery or generator's terminal voltage, when supplying a load, is its e.m.f. less its internal voltage drop.

What happens when you open a switch in a series crcuit?

A closed series circuit is one where the current flows through all devices in the circuit. Opening a switch prevents current from flowing in the circuit and it becomes simply an "open circuit". Any device that operates with current (light, LED, motor, etc) will no longer function.

What is signal power in binary digital signals?

That varies depending on the circuit technology used and function of the signal.

What is the upper control limit of a 1 ohm resistor with a 20 percent tolerance?

A 1 ohm 20% tolerance resistor should not exceed 1.2 ohms actual resistance.

Will AC voltage or DC voltage have higher illumination intensity when provided at the same voltage?

Is this a trick question? It could be. Let's look at AC and DC and see what's up. We'll start with DC. DC is direct current. The voltage of "regular" DC is a fixed value. Like in a car, the battery is about 12 volts. (It's actually a bit higher, but work with me here.) It's a nice, constant 12 volts all the time. The headlights experience a constant 12 volts when they are on. What about AC? Alternating current, or AC, is based on a voltage source that has a changing polarity. For a while it's one way, and then for a while it's the reverse. Also, the voltage isn't constant and then suddenly changing polarity. If we look at the voltage on an AC line, at a certain instant, the voltage is zero. It then rises up over a short time to some maximum value and then decreases to zero again. Then the polarity changes and the voltage goes to some maximum negative value before returning to zero. We usually think of a sine wave, and that's pretty correct. This is how the voltage is actually generated in a generator. It spins, and the voltage output follows a sine wave. Cool so far? Good. Let's jump. With the AC voltage rising to some maximum value, what is that maximum? And since it rises to the value over a short period of time rather than just jumping straight up there, don't we have to "average out" the voltage over the time it takes for it to get to the maximum? And then "average it out" for the back half of that change as it decreases to zero? Yes, we do. And what we end up with is an "effective" voltage, or a "DC equivalent" voltage. In U.S. houses, the 120 volts AC (again, work with me here) is actually the DC equivalent voltage of the AC sine wave. The sine wave actually has a peak at about 170 volts. We could say that a given sine wave has a peak voltage of 170 volts. Or, since it goes negative as much as it goes positive, the total voltage change from the positive peak to the negative peak is twice the peak voltage, or 340 volts peak to peak. But we like to use the "average" or (mathematically) the root mean square voltage, which is the DC equivalent voltage to measure AC. So if an incandescent reading lamp on an end table in a house is plugged into a 120 volt wall outlet, it will have the same brightness as if the lamp was hooked up to a 120 volt DC battery. The effective voltages will be the same because the AC voltage is actually based on the DC equivalent voltage.