Electronics Engineering

Explain with diagram the technique Pulse-width modulation?

integration is reverse of differentiation and vice versa

to hard reset a coby 7095, you have to press the little reset button on the back lower right with a little pin because the hole is tiny. mine recently froze up on me and that is the only way to reset it.

set reset flip flop

Because of high study demand

decimal

By themselves, unlikely. Diodes usually fail catastrophically, shorting or opening. More probable is that one diode in the bridge set is open, while the others are functioning, causing the bridge configuration to perform poorly. This could lead, for instance, in normal operating voltage under low load, but poor (excessive) ripple under high load and inability to sustain rated current.

This is a common failure mode in automobile alternators. One diodes pops, causing output voltage to appear normal, but there is insufficient charge current to maintain the battery. If you had an ammeter, you would see barely enough current to hold operating voltage, and you would not see the normal higher then decreasing current following engine start.

Silicon is an element, On the periodic table it is located in group 14, period 3 and has the symbol, Si.

Silicon has many uses, some of which are:

1. Silicon is used as a semiconductor. Silicon parts are used in computers, transistors, solar cells, LCD screens and other semiconductor devices.

2. Silicon is used to manufacture aluminum-silicon alloys to produce cast parts.

3. Silicon carbide is a very important abrasive.

4. Silicates can be used to make both pottery and enamel.

5. Sand, which contains silicon, is a very important component of glass.

6. Medically, silicon (and its compounds) can be used for the treatment of weak bones (osteoporosis), heart disease and stroke (cardiovascular disease), Alzheimer's disease, hair loss, and improving hair and nail quality. It is also used for improving skin healing; and for treating sprains and strains, as well as digestive system disorders.

7. Silicon plays an important role in the photovoltaic industries in the manufacture of solar cells.

small waves that... vibrate like the unique rippling fold of a shaken silk sheet...

the answer is so easy if it is converted into v peak to peak. there is confusion in your given question becusase same thing is given to convert, how it is possible.

9v

P = V x A, POWER (watts) = VOLTS times AMPS

But 1.5V AC is not a normal output

Frequency modulation Phase modulation

A simple search of the net will find there are many bandwidth monitoring sites that are available for free. A popular one is callled Free Meter Bandwidth Meter.

You also can use WFilter freeware for network bandwidth monitoring.

Strictly speaking, it's energy flow that has direction -the term 'power' merely describes the rate at which that energy is flowing. Having said that, however, the term 'power flow' is indeed used, but it must be understood that the term is really describing the 'rate at which energy is flowing'.

There is no direct relationship between the direction of current and the direction of 'power'. For example, an alternating current is continually changing direction, while the resulting power flow acts continuously in the same direction.

The reason for this is that current flow direction cannot be taken in isolation, as it must be considered together with the direction of the potential difference that is causing that current to flow. If we allocate positive and negative symbols to specify the direction of potential difference and current, where (for example) 'positive' defines a clockwise direction around the circuit, then the product of the two positive signs result in a positive direction for power flow direction. If we now reverse the direction of the potential difference and the current, their signs both become negative, and the product of two negatives is a positive -indicating that the power does not reverse direction, but continues in the same direction.

You cannot turn an SCR off by reverse biasing the gate. Once it is on (anode to cathode), it stays on until the forward current AND the gate current drops to the required threshold level.

That said, you can pulse the anode negatively to turn an SCR off, so long as you don't exceed the reverse bias limits of the device. This is how (photographic) flash devices, for one example, can modulate the duration of the flash.

To accurately identify the component represented by a specific symbol in a circuit, I would need to see the symbol in question. Circuit symbols can represent various components such as resistors, capacitors, inductors, diodes, and more, each having a unique graphical representation. If you describe the symbol or provide its visual representation, I can help determine which component it corresponds to.

it is because of friction. friction is a force that opposes the relative motion of two surfaces in contact.

Without more information, there's really nobody that can even begin to answer your question. What are the symptoms? What's the brand name? What it doing, or not doing?

I know it's not much to go on, but you really haven't given us much to go on either. Try re-asking your question and giving us more information with which to work. I'd love to be able to help you out.

Why they use high frequency?

higher frequencies mean more space to store information in the wave itself.

But, not too high that its amplitude is tiny enough to trespass the ionosphere solar particles, leaking out into the space.

In fact, lower frequencies can travel longer distances. But there is also a solution for long distance high frequency waves, called Skywave (keep this word in mind if you are interested to be a radio amateur).

Skywave is cheaper and more effective, normally travelling a distance of 1000km at least (it's far). For example, TV broadcasting use skywave technology.

But, for lighter application usage that transmit very little information, such as atomic clock synchronisation. The application produce a tick in each seconds, therefore bursting a small piece of radiowave into the atmosphere in every second. This 1 hertz, very low frequency can achieve a coverage of the entire north America continent.

Why don't you produce a free mobile internet technology by blending low and high frequencies to turn out a sustainable (low enough to cover much area; high enough to store adequate information in the wave itself, maybe this will provide "Everywhere Internet", even for the third world countries) information transfer welfare for humankind? If you be the founder of it, be prepared to proceed to the heaven. Do you get it?

Professor Georg Wilhelm Richmann, of Saint Petersburg, Russia, became the first recorded person to be killed while performing electrical experiments when he was struck and killed by a globe of ball lightning in 1753.

The advantage of drum signals over smoke signals is that drum signals are faster, and you can transfer more information in the same period of time. The speed of drum signals is limited by how fast you can pound the drums, how fast you can hear the drums and still differentiate them as single beats, and how much multi-path echo distortion you get with drums. The speed of smoke signals is limited to how fast you can modulate the smoke into pulses, allowing them to differentiate into distinct puffs as they slowly rise into the air.

60 volts for stud welding

appipro meaning appropriate