Electronics Engineering

Application:

1.For amplification of sound.

2.logic switch

3 oscillation

4 power amplification.

Yes, we use AC (alternating current) in our homes, the current changes direction 120 times a second.

A 1080p set has higher native resolution and supplied with 1080i (e.g., from some cable or satellite programs) or 1080p signal (e.g., from Blue-Ray discs) will provide sharper picture, especially visible on bigger sets (42-inch or more) and from up-close. 1080p sets are however way more expensive than 1080i ones. All flat panel HDTVs (i.e., plasma and LCD), as opposed to CRT tube sets, are inherently progressive in nature. For marketing reasons, however, some manufacturers promote 720p (p for progressive) HDTV as 1080i (i for interlaced), mainly to signal, I suppose, that it supports 1080i signal and to improve their sales. The so called '1080i HDTVs' take a 1080i signal and downconvert the picture to the 720p resolution. Additionally, they de-interlace the 1080i signal and display it in progressive scan mode but in 720p resolution. So, a 1080i TV set is in reality a 720p set, but many manufactures designated 720p sets as such as soon as 1080p sets came along. 1080p sets, on the other hand, take 1080i cable or satellite signal and only deinterlace it, creating a progressive scan, meaning the picture is painted from the top to the bottom line (there are 1080 such horizontal lines) in a single pass and this process happens 60 times per second (in the US). This means that same size HDTV sets designated as 720p and 1080i have identical native resolution of the display. Quality of the picture depends only in part from resolution, however, and according to some professionals the most important aspect of picture quality is contrast ratio, the second most important is color saturation, the third is color accuracy, and only the fourth is resolution.

David Edward Hughes invented the carbon microphone. He lived from 1831-1900, and lived in London, England.

Watt

Well I guess that depends what your measuring. Voltage in your home 120 volts, a car battery puts out 12.6 my stereo is 700 Watt, if you voltometer the guts at any given time its about 340 Volt ( I estimate) perhaps you should be more specific in your question friend.

The greatest resistance is two bulbs in series. The equivalent resistance is series is R1+R2 while in parallel the resistance is R1R2/(R1 +R2). R1 +R2 is greater than R1R2/(R1+R2); e.g. if R1=R2 = R the series resistance is 2R and the parallel resistance is R/2.

St Louis, Mo.

The total resistance of the circuit increases. hence the new resistance after adding the resistance will be

new resistance = old resistance + added Resistance

There is a small mistake in the question. The second word is 'changes' not 'charges'

uni junction transistor

A: An example will be a power supply for a static circuit it just perform its duty nothing more. Dynamic circuitry involves circuitry that continuously change as data in inputted like a computer for instance

Amperage is the measure of electrical current, which is the measure of the electron flow through something (like a wire). The more electrons that flow through the wire, the higher the amperage. Current is understood as moving from higher voltage to lower voltage but since electrons are negatively charged, they actually flow in the opposite direction.

Voltage is a measure of electrical potential between two items. The electrical potential can be looked at as the difference in the electrical charge between two items. The item with more negatively charged electrons has a lower voltage.

The smoothing capacitor converts the full-wave rippled output of the rectifier (which is left over AC signal) into a smooth DC output voltage

A smoothing capacitor after either a half-wave or full-wave rectifier will be charged up to the peak of the rectified a.c.

Between peaks of the a.c. the stored voltage will drop by a degree dependent on how much current is drawn from it by the load. The larger the value of the capacitor, the less drop there will be, and therefore less ripple when loaded.

Benjamin Franklin was the first person to prove that lightning is a form of electricity.

An Avometer is a high-quality British-made analogue multimeter, regretfully no longer in manufacture, but widely-found in electrical laboratories and engineering workshops. The acronym, 'avo', stands for amperes, volts, and ohms.

You need to know the current flow through the circuit as it is now, or the resistance of the circuit to be able to determine this.

If loading is very small (you're not drawing much current), you can set up a voltage divider so you get 1 volt across one resistor; this will waste electricity, so I don't suggest it if that is a serious concern. The resistors must be sized small relative to the current load to avoid causing problems with the circuit.

Because of video's complex nature, AM lends itself to transmitting several different signals simultaneously, like video, chroma, sync, etc. and it can provide the bandwidth required to do it easily.

FM for the audio has a bandwidth of 100 khz, and FM is much better for that. It's also a `cleaner signal`, but the FM transmitter has limitations on how much information it can carry.

In a dc motor the voltage generated in the armature acts against the supply voltage. The current is the voltage difference divided by the armature resistance.

If the rotor is turned faster so that the back emf exceeds the supply voltage, the current goes the other way and the motor has become a generator.

With some difficulty. You can use a resistor in series to drop the voltage, or you can use a zener diode. If you want to be elegant you get a DC-to-DC converter and set it up to do the job for you.

A series resistor will work only if the load current doesn't vary.

Resistors limit currents in a circuit to a precise degree and control voltages within the circuit.
Capacitors can store electrical charge and if coupled to a resistor giving timing functions. Capacitors block dc currents and act as coupling devices for ac signals.
Transistors act as gain blocks that can amplify signals and actively respond to changing circuit conditions.
Inductors or coils can act as frequency filters,generators or energy storage devices. Two coils wound on a common core are called transformers. These can step up and down voltages and isolate sections of a circuit from other parts.
Diodes can rectify ac signals and block dc current as required.
Integrated circuits contain all the above components in miniature

They are used to decouple a circuit. Basically you divide the circuit in two but they share the signal that is coupled in the transformer without physically connecting the two circuits. This gives you dc blocking, great interference blocking, but at the same time you have the same signal on both sides of the transformers if it is 1:1. You could have other combinations such as 1:2, 1:4, etc.

Yes and no. The globe, if it will fit the socket, will light, but it will be a dull red and useless.

Electrical fittings for 240 volts usually wont allow this as they are different fittings.

The later types called EF lights will probably not work.

i think it goes from kinetic to electric + sound