Electronics

latest technology in communication slide should be 4G and 6th sense technology.

No, Terminal voltage of a battery can't be zero. For example, if my mobile's battery is at low charge. It is showing only one point of charge on screen, but there will be no fluctuation on its screen, all the other features like audio, video, display will remain same unless it will become fully out of charge. Charge could be zero but the voltage can't be zero.

Well, actually the terminal voltage of a battery can be zero, but only when the battery is totally dead and unable to take a charge (if it was a rechargeable type battery). At this point it must be disposed of.

One exception is wet cell batteries (like lead acid), if the liquid electrolyte is removed the terminal voltage goes to zero but the battery is still good and can be restored to normal operation by refilling it with electrolyte. In fact wet cell batteries are often sold fully charged but with no electrolyte and their terminal voltage is thus zero on the store shelf until the salesman fills them with electrolyte.

1. heat. If it's hot enough, blackbody radiation (e.g. incandescent light bulb)

2. Electromagnetic radiation (radio waves, magnetic or electric coupling to adjacent conductors) if the current is changing.

5v

A: Each IC has unique operating parameters never the less it require instruments. A VOM can solve some problems but never all of them. For instance an amplifier oscillation it may Lock like a bad part but there is nothing wrong with the component if the oscillation is stopped. An oscilloscope can display the problem visually and it can be fixed, The oscilloscope may display the problems but interpreting the display is an art by itself.

Leaving a receptacle energized will not consume power, some things left plugged in while not in use will consume power.

Plasma is a state of matter in the same way that solids, liquids and gases are also states of matter. Plasma is found in fluorescent light bulbs and is used to generate images in a plasma television. So, a television has the same kind of plasma as a light bulb but applied in different ways.

Different methods for different circuits. In a simple RC filter with a series R and shunt C, the time-constant T is equal to RC. The cutoff frequency is given by 1/(2.pi.T).

So with 1 k-ohm and 0.1 uF the time-constant is 1000 x 1E-7 or 100 microseconds, so the cutoff frequency is 10,000/2pi which is 1592 Hz.

Elijah McCoy invented the automatic oil cup so you can pour oil onto moving parts of a automotive. Elijah Mccoy also invented the Automatic Engine Lubricator,Lawn Sprinkler, and Folding Iron Board.

The strobe pin on the LM311 is used to disable the output, so that multiple 311's can be ganged together, with only one being turned on at a time. It is also used to adjust the balance of the device.

While Voltage and Resistance typically remain constant in incandescent lamps: P (Power in Watts) = I (Current in Amperes) times E (Electrostatic energy in Volts [AC and DC]).

P=I*E - when P (Watts) goes up so does I (Amps).

Counter is a digital circuit which is able to count from a specific number to another specific number (according to the requirement). Depending upon the counting style the counters can be divided into two.

i) UP counter- which increment one by one (eg. 0,1,,2,3,4,5............15) for a 4 bit counter

ii) Down counter- which decrements one by one (eg. 15,14,13,12,11,10,9,8................0) for a 4 bit counter.

A simple apllication of a counter is a diigital clock, having 3 counters. One for counting the seconds, another for counting the minute and the last one for counting the hour.

A silicon chip is a structure created by people using machines. The structure consists of a base, made of silicon with a small amount of other elements added, so this part is a mixture. The chip also has wiring and transistors printed on it, thus making the entire chip a structure rather than a mixture or pure substance.

You can reduce the voltage fluctuations by first determining what is causing them, then counteracting this cause. In small circuit designs with multiple switching amplifier and ICs, the power or ground lines may become noisy due to this switching. Placing capacitors at the ICs power and ground can reduce this to manageable levels in most cases. Sometimes it can become necessary to isolate specific circuit's power and ground from the system using small inductors as well. If you are designing a power supply, zener diodes, and isolated power outputs (at the same or different voltages) can be used.

R=V/i

That is 1000 ohm.

The higher voltage source forces current backwards into the lower voltage source, which can damage it or even cause it to explode.

You use a half-wave rectifier where the system design does not require a full-wave approach.

Half wave rectifier output is used for running ac motors.

to produce sustained oscillations without any ac input.it is nothing but an amplifier with positive feedback and without input.it just converts the noise in the circuit and amplifies it to produce oscillations.

Of or pertaining to an electron or electrons.

CRT is a mature technology, less expensive, higher contrast, and still produces brighter pictures than a flat-panel display of the same display area. These advantages are slowly being eroded with better flat-panel technology. The cons are more than offsetting its pros. Since CRT uses accelerated electrons and a phosphor screen, it has a little more harmful radiation (if not properly shielded), it uses more energy and generates more heat, and at the end of its life, produces more hazardous materials, not to mention that it occupies a larger footprint and weighs more than a flat-panel display.

===========================

Gunn diodes are used in GUNN oscillator over high frequency application. its work on the transfer electron effect TET and the scientist J.B Gunn observe it so the phenomenon is named by gunn effect. the diode are made from GaAs material.because silicon is not suitable low forbidden energy gap 1.21eV only.

HTML stands for Hyper Text Markup Language. It is used to code (program) the basic elements of the web and webpages. Basically, it is a way to set the basic blocks for other languages (like Javascript and CSS) to manipulate. HTML stands for Hyper Text Markup Language. It is used to code (program) the basic elements of the web and webpages. Basically, it is a way to set the basic blocks for other languages (like Javascript and CSS) to manipulate.

A volt meter is used to measure volts.

So what are volts???

Volts are what a volt meter measures.

Imagine water being pushed through a pipe. If the water in the pipe is falling from a container at a higher place, it goes through the pipe at a higher pressure... sort of like volts.

A larger pipe allows more water through, sort of like amps.

although the AC signal is rectified the output which we get is the pulsating DC which is not desired because many appliances wok on plain DC voltage . The pulsating DC can be viewed as AC + DC component of the signal

ripple factor of a rectified circuit is the ratio of AC component of signal to the DC component of the same rectified output signal. higher the ripple factor says that the signal is not smooth so lesser is its application.

the components used to smooth these type of signals or to remove the 'ripple voltage' as called filters

The quoted value is usually RMS value, i.e it is lesser than the peak value of the voltage, therefore the peak value is sqrt(2) times the quoted value. (it is a sine wave)