Electronics Engineering

You would be hard pressed to accomplish this in a single stage amplifier. It's much easier with two.

For someone that hasn't done a whole lot of design, I would use two op amp stages to get there. the U741 op amp is a very common op amp, and is pretty cheap. For both stages you need to apply a +12 and -12 volt.

Here's the pin out for stage #1:

Tie 3 to your source

6 is your output. Connect a 100k ohm resistor from 6 to 2

Tie a 1k ohm resistor from 2 to ground.

And the second stage:

connect pin 6 of the first stage to 3 of the second

6 is your output. connect a 10k ohm resistor from 6 to 2

Tie a 1k ohm resistor from 2 to ground

Connect a 10 microFarad capacitor (12 volt minimim rated) from pin 6 to your output load. This will get rid of any DC offset, and the value does not necessarily have to be 10 microFarad, but the bigger, the better (usually).

This should have a pretty flat frequency response to ~3kHz. The first stage has a gain of ~100, the second has a gain of ~10. If you find the frequency response is poor, lowering the gain of the first stage and increasing the second will improve the frequency response. Replacing the 100k with a 50k will drop the first stage gain to ~50; replacing the 10k with a 22k will increase the second stage gain to ~20. This should have a frequency response that's fairly flat up to ~10kHz.

If you need an actual schematic, email me.

_____________

J| -_____/\/\/\/\_________+

| |

| - + |

|___i|i|___|

E

Well this is the circuit diagram , where r is the sliding jockey of the rheostat and a cell (E) is connected in parallel with the rheostat. By adjusting the jockey resistance of the rheostat can be altered which in turn would regulate the potential offered by the cell E to the main circuit. And thus a rheostat can be used as a potential divider.

If you have the STX 821 you have a 800 mhz hand held radio. To Program you will need a laptop that is running DOS 6.0 or window 98 where you can go into DOS. Next you will need the programing cable for the radio and the RIB box. Next you will need the programing software from Motorola. If you don't have the software you can get from the Russian web site: www.cqham.ru/sch_eng.html

You can buy the RIB Box from E-bay and and the programing cable if you don't have it. the software is easy to use. There is a help menu on the software. If you are going to program a trunk system you are going to need a system key. That I don't know where you can get that. I hope this help.

1MHz

The examples of analog devices are as following:

1. The telautograph

2. Analog synthesizer

3. Analog television

4. Analog Computer

24 gb ram is available in the market

muthu

ans.2

it can't be answered definitely as everyday technology gives us a better option , so it produces a better size of RAM everyday .

One invert the function or a signal. the other is a pulse width modulator controller which are usually used to convert one source of power to another. As in 12v dc in 5v dc out or vice versa

high efficiency nearly with my practical 72%..and the cross over distortion had been eleminated by the slight shift of q point above cut off region

Class AB push pull is used in battery powered amplifiers as used in radios because the current drawn reduces during quiet periods, saving battery power.

there are two possibilities 1>breaking of bonding with a nighbouring atom and again it'll be acquire intrinsic property.

2>there two free holes available formed then p=Nd/2

for hexa-valent n=Na/2

The induction of a DC motor while rotation lead to a non continuid current. This AC part of the DC csupply current is called ripple current. You can measure this and see if the motor is moving and also you can count the ripple per second and have the motor speed "RMS".

D.C. stands for direct current. A.C. is alternating current.

conducting materials

3000 ohms are 3 kiloohms.

See the related link for a circuit diagram. The diagram pretty well explains how it works also. A potential is applied across the potentiometer. A movable contact moves across the voltage developed across the fixed portion and picks off the desired voltage.

A p-n junction (or a metal-semiconductor junction) with rectifying behaviour is an electronic device which allows a one-way only current flow (between the two semiconductor regions, or between the metal and the semiconductor). An ohmic contact in a metal-semiconductor junction is realized by lowering the potential barrier (allowing electrons to easily migrate into the metal) and by increasing the doping levels in the semiconductor (more than 10^18 cm^-3): this way the potential barrier, that should stop electrons from migrating into the semiconductor, is confined in a very small region making it possible for electrons with low energy to pass through it (tunneling effect). This means that in a ohmic contact current can flow both ways; such a device apparently works like a resistor with a low resistance, hence the "ohmic contact" name.

voltage and resistance

v=ir

v=voltage

i=current

r=resistance

in physics right now

Flip Flop is a logical device or sequential device?

They are used to offer a low impedence path to high frequency interference from switching sources such as fridges and thermostats. Also to curb radio frequency breakthrough.

When an alternating voltage is applied to a purely resistive circuit, the resulting current is in phase with the voltage.

printed circuit board

Oder is caused by bacteria. Bacteria can not exist in salt water. Pour a box of salt into a large enough container for your flip-flops or in your kitchen sink and fill with water. Use something to keep your flip-flops submerged and let set for about 24 hours. Drain water, rinse and dry flip flops (you must dry them as fresh water is a growth medium for bacteria).

2 volts across 100 kOhms produces 0.02 milliamps (or 20 microamps) of current. Ohm's law: Voltage = Amperes * Ohms, so Amperes = Voltage / Ohms.

passive

Assuming the zero state output of the DAC is 0 volts, then 4095 steps of 8mv would yield a full scale output of 32.76 volts. The resolution is one part in 4096, or 2.44 percent. An input of 010101101101 is 1389. Multiply that by 8mv, and you get 11.11 volts.