Circuits

Yes. Electrolytic capacitors are polarized.

Capacitors with positive and negative poles generally have positive and negative marks. Generally, for capacitors with pins, the long end of the pin is the positive electrode. For cylindrical electrolytic capacitors, there will be a vertical line printed on the negative side of the capacitor. SMD capacitors generally have no positive and negative poles.

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In a DC circuit . . . resistance.

In an AC circuit . . . impedance.

150 mA is.

it is a transformer tht when u crank the crank, it walks

Reverberating.

bulb , bulb holder , wires and bataries are main compoments of a circuir

modulator

by sending electricity through them

I need the diagram of diodes whith type GSa-L3-2

bulb, Motor, buzzer, battery

There are no particular advantages or disadvantages of series or parallel circuits. Some circuits require one while other circuits require the other. Frequency filters often require one or the other depending on whether you need a pass or rejection filter.

Terminal

The 4017 is a 5-stage divide-by-10 "Johnson counter" with 10 decoded outputs

and a carry out bit. The 4000 series are CMOS devices.

In TTL, the 74142 is also designed as a decade counter, which makes it functionally

equivalent to the primary mission of the 4017. But it can't be called "equivalent" in

any other respect, because of the usual wide array of differences in power requirements

and input and output impedances between CMOS and TTL technology.

Interlocking systems are used mainly where definite operating and sequential procedures are to be followed. Applications are generally where the safety of a person working on equipment is in danger by someone inadvertently turning on the equipment and thereby inflicting injury.

Another application for interlocking systems is for access control. A simple, robust system, requiring no power, can be installed disallowing access by unauthorised persons into various areas of buildings, factories, plants etcetera. The limitations of interlocks are boundless and applications for safety or other reasons exist in all areas of industry.

forward bias

bandwidth decreases

think of a circuit with a cell , wires and a bulb. now think about a boiler and pump, pipes and a radiator. the cell is like the boiler and pump because it has the energy. the pipes are like the wires because they transfer the energy. the bulb is like the radiator because they use the energy changing it into light energy and heat energy when referring to them especially.

Advantages - very cheap, and easy to replace. Since they fail open circuit, a small low value resistor can be used instead of a more expensive fuse.

Disadvantage = waste power, by turning it to heat. If you follow the link below and study the circuit diagram you will see that current is flowing in both Rb1 and Rb2 even when there is no signal being amplified. That "quiescent current" is wasted because it is not achieving anything and power is consumed through the production of heat.

It converts light into an electrical signal. Opposite of what an LED does.

David Gallardo ATX

try RHEOSTAT

Level = 20 times log (6/2) = 20 times log (3) = 9.54 dB

The 7812 is not a transistor. It is an integrated circuit, a voltage regulator designed to regulate an input voltage down to 12 volts output. It typically comes in a TO-220 case, and has three leads, so it sure does look like a transistor though!

symbols of fixed resistors

Because if input A *and* input B is true, then the output is true!

Truth table of AND gate:

┌─┬─╥───────┐

│A│B║Q (Output)│

├─┼─╫───────┤

│0│0║0..............│

├─┼─╫───────┤

│0│1║0............. │

├─┼─╫───────┤

│1│0║0............. │

├─┼─╫───────┤

│1│1║1............. │

└─┴─╨───────┘