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This is not a Yes/No answer, as the answer depends on the AC power sources used. There are two factors:
- Frequency: e.g. in the USA the powergrid its AC frequency is 60Hz
- Phase: an AC power source its voltage rises up and down with a certain frequency. When you take 2 AC sources, Phase is the shift between those two (this is often expressed in an angle).
If the AC power sources have the same frequency and there is no phase shift, then the AC Voltage will double when you serialize the two.
However, If the two sources are 180 degrees (or PI radians) out of phase, then they will cancel each-other out. Imagine AC current like the ripples in a pond when you throw 2 stones in the water 2 feet apart: The ripples flow out in a circular pattern from the center of the spot where a stone hit the water. Where the 2 circles meet, you'll notice that a some spots there is no activity (the ripples cancel each other out) and at other spots the ripples are higher.
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What is the formula for power delivered by a voltage source?
Power is voltage times current.
What happens to electrical current as voltage is increased?
If everything else stays the same, power increases as EMF increases. (EMF is to volts as power is to watts.)EMF = Electromotive Force.AnswerPower is proportional to the square of the voltage. So, if you double the voltage, you'll quadruple the power... providing everything else stays the same!
Convert rms to peak to peak power?
P-P voltage = RMS voltage * 2 * sqrt (2)Here's an example: house voltage is 120VRMS, which is actually ~169 volts peak - neutral. double this will give peak to peak value.
Is super position theorem used for power calculation?
The superposition theorem (not 'super position'!) is used to solve complex circuit -typically a load with two voltage sources. It enables the currents through, and the voltage drops across, the various components to be calculated and, therefore, the power of each component can be determined.
What are the advantages of power transformers over voltage transformers?
Power transformers can be used for power transformation. Voltage transformers are not suitable for high power applications.
If the voltage in a resistive is double the power will be?
In a resistive load circuit, the power = multiplication of voltage and Current. By increasing the voltage power will not be increased. Power is defined by the load as per its design. If the voltage is higher the load current will reduce. However running a load at double the rated voltage is not good for the device. Insulation may fail.
Should Power sources connected in parallel have the same voltage rating?
yes
When current flow in electrical circuit is 2 amps what will the current flow be if the power doubles and the voltage remains the same?
Since power is voltage times amperes, in order to double the power while voltage remains the same, you must double the current - 4 amps in this case.
Is power proportional to voltage squared?
Yes, power is directly proportional to current. Power is equal to amps times volts, and as current goes up (with voltage remaining constant), power will go up. Double current, and you'll double power. Cut current in half, and you'll cut power in half. (Voltage stays the same in all this).
If the current flowing through an electric heater increases from 6 to 12 amp while the voltage remains the same the heat produced by the heater will be what?
Since power is current times voltage, doubling current while keeping voltage the same will double the power. Ignoring slight non-linearity, if the power doubles, the heat will double.
What process will double the power dissipated by a resistor?
Increase the voltage across the resistor by 41.4% .
What would be the result if two batteries are connected in series in terms of power and voltage and current?
If two identical batteries were connected in series, the resulting voltage would double, the available current would remain the same, and the available power would double. Note that, by Ohm's Law and the Power Law, doubling the voltage into a set resistance would double the current and quadruple the power. This is inconsistent with the battery's ability to provide a certain current, so you would also need to double the load resistance, otherwise you could damage the battery.
What is the Ripple frequency of full wave voltage doubler?
It's double the frequency of the power source.
When the voltage applied to the rheostat is doubled then tripled what happens to the rheostat?
The heat released by the rheostat with double the voltage will quadruple. When voltage is tripled, the power loss is 32 or 9 times that before. A rheostat is a kind of variable resistor. Since E = IR (voltage equals current times resistance), then I = E/R (current equals voltage divided by resistance). If the voltage is doubled and the resistance stays the same, then--you can see by the formula--the current would double. Now, power dissipated by a resistor is related to the product of the current and voltage (P = IE). But since a doubling of voltage produces also a doubling of current, double the current results in 2X2=4 times the power (heat) loss.
If you double both the voltage and the resistance in a circuit what would be the effect on the current?
If you double the voltage in a circuit, the power is quadrupled, assuming the resistance stays the same.
What is important of adjusting DC voltage to the synchronous motor?
|o\/o| __V__ When adjusting DC voltage to a synchronus motor, make sure you correctly initialise the power sources main quantum form
What are the example for AC sources?
While there are no true voltage sources, some reasonable approximations of them exist:DC, any type of batteryDC, voltage regulated power supplyAC, wall outletAC, true sine-wave UPSAC, variable frequency sine-wave signal generatoretc.
