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May power amplifier a voltage amplifier?
A power amplifier may also boost voltage; in audio equipment, power amplifiers often have a dial on the front that is used to control the input voltage gain. A simple power amplifier is composed of a single transistor; this type of configuration cannot provide voltage amplification as well. A voltage amplifier stage is needed. So the above example of an audio power amplifier is actually a voltage amplifier stage, followed by one or more power amplifier stages.
Why is alternating current low voltage?
Alternating current is not necessairly low voltage, on the controrary AC is more oftenly used for when high voltage is needed. Most power distribution systems (extremely high voltages) use AC because AC is easier to transform to high voltages (using the aptly named transformer). High voltage is needed for power distribution to decreases losses due to transmission.
The voltage present in a power grid line is more than?
The voltage present in a power grid line is more than enough to kill you.
How do you get more power from 6v motor?
more voltage or amps
Will a dc power cord from a Compaq V2000 work on a Compaq nc6220?
All power adapters have to match the Wattage, Voltage and Amps exactly. So you have to look on the adapter on both of the power adapters and see if they match. If you use a power adapter that has more power than is needed you will fry the motherboard so be carefull. The wattage, voltage and amps are on the adapter..
Can you say which bridge rectifier voltage has the highest out put voltage?
A: NO the power output will be higher. Bridge rectifiers do not provide more voltage output it just add more power by rectifying both positive and negative voltage of the AC input
How does the number of cells affect the current in a circuit?
More cells = more available power. Power = voltage * current. The orientation of the cells determines whether this power is delivered as more voltage, or more current. If the cells are in series, the voltage will increase proportionately and the available current will remain unchanged; if the cells are in parallel, the current will increase proportionately and the voltage will remain unchanged.
High voltage current is needed for transmission but is low voltage is more useful?
A: Power transmission is in the range of 500 kilo volts as someone can tell the hi towers are far above ground and each phase is separated by ceramic insulators. Low voltage is necessary to manage these power safely to homes and business. That is why transmission becomes distributions and finally local power to us.
How do you make a simple Voltage regulator?
This depends heavily on the intended usage (voltage, power, etc). If your power source already has the correct voltage but you want to regulate power spikes (e.g. electrical noise in a car), you can use a passive RF filter: basically, an LC low-pass filter element. If your power source has a higher voltage than the device you intend to drive, there are two options: a passive regulator, built around a power resistor and a Zener diode, for very low to low power systems, and very low cost; or an active regulator built around a 78XX chip (or equivalent), for medium power systems, and somewhat higher cost. The 7805 chip is very widely used to provide 5V, and will always work. The Zener regulator is really the simplest and cheapest way to do it, but it requires you to modelize your power requirements to choose the correct diode and resistor. If your power source has a lower voltage than the device you intend to drive, there are various chips available, but they generally require more external components like a coil and a capacitor, and require you to do more computations to get right. They also generally cost more.
when voltage increases and currents stays the same what happens to wattage?
Power = voltage * current * cos (power factor); So if voltage increases, and current stays unchanged, power usage will also increase in proportion. A: Power is a factor of voltage and current therefore the power will increase if one or both are increased
How do you design the silicon on chip?
A:TO design a chip you have to be more of a physicist then an engineer. usually a very big projection is needed to physically see the interleave of junctions
Why is alternating current more effective at long distance travel than direct current?
Transformers increase and decrease voltage as needed. PLATO
