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No. By "energy", you must mean "power"?

Energy = power * time.

Anyway,

No transformer can step up energy. Even in a perfect transformer, you would only receive the energy output equal to the energy input.

There is always some loss of energy due to resistance of the windings and unwanted electrical currents induced in the core. Both convert some of the energy input into heat.

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15y ago
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14y ago

Only current & voltage magnitude will change from primary to secondary (and vice versa). So the power (P = voltage * current) remains constant at both the sides.

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13y ago

No, the voltage will increase when a step up transformer is used.

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13y ago

All Transformers consume electricity in the form of excitation current. This is a very small current that keeps the electrical produced magnetic flux continuous.

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14y ago

voltage

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Q: Is the output power more than input power in a transformer?
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How do you test a stick welder transformer?

This could be dangerous if you aren't very careful. Take the transformer out of the welding machine. Put it on a wooden bench. Apply 12 volts to the input side with a car battery. Measure the input volts with a volt meter and write down the value. Then use your volt meter to measure the output voltage. If you have no output voltage then your transformer is obviously blown. You should read an output voltage that is higher than the input voltage based on the number of winding in the coil and/or the manufacturers specifications. According to Faraday's law the only output voltage you will read is at the exact time power is applied to or taken away from the input when using dc power. Otherwise you will have to apply ac power which is much more powerful ( and more dangerous ) than the 12v dc. Your volt meter may not be designed to read high enough voltage for the output you would see with 110 v ac.


What gate the output will be low for any case when one or more input are zero?

An inverter has a high output when the input is low, and a low output when the input is high.


Is transformer an amplifier?

No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.


What are typical values of input impedance and outoput impedance of ce amplifiers?

Output of the power amplifier is smaller 0.1 ohms and input of the loudspeaker is more than 4 ohms.


What is the output of a diode can be?

A diode itself has no input or output.The circuit containing the diode usually has an input and an output, maybe even more than one of each. The output of this circuit will depend on far more than the diode as well as depending on the type of diode used.Theoretically: if a diode is connected across the secondary output of a stimulated transformer, you would read a half wave at the frequency of the source across diode.Such a circuit would cause any real diode to explode due to lack of any current limiting and the resulting high power dissipation in the diode.Hence "Theoretical". That's kind of what "Theoretical" means.

Related questions

Why is output dc higher than input ac?

Output power can never be more than input power. With a transformer, it is possible to increase the output current (while decreasing the output voltage), or to decrease the output current (while increasing the output voltage).


Can you use a step up coil system to quadruple the power output of a stereo?

Assuming you mean a step-up transformer, no. An ideal transformer will always have the same input power and output power. A real transformer will actually have losses, so the power output will generally be somewhat less than the power input. To increase the power output of an amplifier, you need to actually decrease the load impedance for the same given frequency. What this means is that you will draw more power with a speaker having 6-ohms impedance (at say, 1kHz) than a speaker having 8-ohms impedance (also at 1kHz; the frequency doesn't matter but needs to be the same reference to compare apples-to-apples).


Transformer Output power less than input power?

A: Absolutely a power transfer will have an internal loss of IR . for a power transformer the loss can be as much of 20% or more if other magnetics are involved like iron screw holding the lamination together. Usually brass is used to reduce that loss.


Do transformers violate the laws of conservation?

No, they don't violate ANY conservation law. And specifically, they don't violate conservation of energy.Roughly speaking, the power (energy per second) in a current is equal to voltage times current. (There is also a power factor, which I won't treat in more detail here.) In a perfect transformer, the output voltage might double (compared to the input); while the output current is reduced to 1/2 the input value. If you multiply the two together, you will get the same power in the input, and in the output. In a real transformer, there will actually be some losses, so the product (voltage x current) will be slightly smaller in the output, compared to the input. For instance, the voltage might be doubled, while the output might change by a factor of 0.495 (0.5 would be a perfect transformer in this example).


How much energy is used by a transformer?

An efficient transformer will convert more than 99% of the input energy into output energy, therefore wasting less than 1%.


How do you test a stick welder transformer?

This could be dangerous if you aren't very careful. Take the transformer out of the welding machine. Put it on a wooden bench. Apply 12 volts to the input side with a car battery. Measure the input volts with a volt meter and write down the value. Then use your volt meter to measure the output voltage. If you have no output voltage then your transformer is obviously blown. You should read an output voltage that is higher than the input voltage based on the number of winding in the coil and/or the manufacturers specifications. According to Faraday's law the only output voltage you will read is at the exact time power is applied to or taken away from the input when using dc power. Otherwise you will have to apply ac power which is much more powerful ( and more dangerous ) than the 12v dc. Your volt meter may not be designed to read high enough voltage for the output you would see with 110 v ac.


Why work in a team?

For support, more brain power, input, output can be greater.


Why work in teams?

For support, more brain power, input, output can be greater.


What is the point of a step up transformer?

A 'step-up' transformer is a transformer with more turns on its secondary winding than on its primary winding. It's secondary (output) voltage is, therefore, higher than its primary (input) voltage.


What relationship exists between input and output of a transformer?

A transformer changes voltage, for more efficient transfer over long distances, or for less voltage from mains supply into a 130v Laptop or equivalent.


Why does the electric sander have a higher power output than sanding by hand?

becouse its have more input


Why do you obtain more dc voltage than ac voltage in power supply design by using transformer?

You don't. Transformers only work with AC voltage. Their input will be an AC waveform, and their output will be an AC waveform. Other electronics are used to convert the stepped down AC waveform from the transformer to DC.