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# The ratio output power to input power in percent is called?

Updated: 9/14/2023

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14y ago

B. Efficiency

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Q: The ratio output power to input power in percent is called?
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B.) efficiency

### How do you find the input power in the electric efficiency formula if you have the output power and the efficiency percent?

Output equals efficiency times input; in formula, Ot = Ef x In and so In = Ot/Ef. To calculate the original input, divide the output by the efficiency.

### Another way of saying that the output is 70 percent of the signal input at cutoff frequency is that the output is up or down dB at frequency cutoff?

If the output power is 70% of the input power, then the output is roughly 1.55 dB downcompared to the input.If the voltage at any point of the output waveform is 70% of the voltage at the same pointon the input waveform, and the input and output impedance are equal, then the output is3.1 dB down (rounded) compared to the input.

### What is a a comparison of a machines work output with the works input that is mechanical?

Output power divided by input power, for a machine, is called the machine's efficiency. It need not be mechanical energy.

### If 35 percent of the fuel is converted into electricity this is called the what of the power plant?

This is called the efficiency of the power plant. Efficiency is a measure of how well a power plant can convert its fuel input into useful electricity output.

### How do you find power input with given power factor and power output?

Output Power divided by Power Factor.

### Is ups input or output device?

UPS is Uninterruptable Power Supply. It is neither input not output. It supplies electrical power to a computer when the main electrical supply is interrupted. It does not handle data in any way.

### Is power supply input or output devices?

Output - because it is outputting power to the rest of the device

### What does the power relatio0nship state on a transformer?

power in, and power out--input and output.

### What is the required input and output voltages for a personal computer to power on?

input 220v ac &amp; output 24v dc

### 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).