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Q: The ratio of output to input power in percent is called?

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efficiency

efficiency

B. Efficiency

B.) efficiency

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.

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

Efficiency

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.

output

You divide useful output energy by the input energy. Or equivalently, useful output power by input power.

Output Power divided by Power Factor.

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

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).

The power output is always inefficient and usually less than the input because energy is lost by heat and movement etc

No. Some power is used up actually to make the machine work. The ratio of powers output/input is call the efficiency.

It is the ratio of output power given by the machine to input power supplied to the machine. i.e. Efficiency = output power of the machine / input power suplied to machine.

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.

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

input 220v ac & output 24v dc

Efficiency = (output power/input power) x 100%

Friction produces heat which absorbs part of the power input to the machine. The efficiency is defined as the power output divided by the power input, so if some of the input power is converted to heat instead of into output power, it must reduce the efficiency.

Efficiency is the ratio of Output Power to Input Power and is uaually expressed as a percentage. n (eta) is the symbol for efficiency.Input Power = Output Power + Losses

The efficiency is output divided by input.

Efficiency measures the difference between input and output.

Input gears are usually small and attached to a rotating shaft. The input gear is connected to an output gears via a belt, band, cable, drive chain, or directly with the output gear. The output gear transmits and magnifies the rotational power received for the input gear.