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How much electrical power will a winch use when it has an efficiency of 0.5 and a useful lifting power of 2500 watts?
Wiki User
∙ 13y ago
If the efficiency is 0.5, then the useful lifting power is 0.5 of the power
that it must consume in order to do the job.
2,500 W = 0.5 of input power.
input power = 2,500 / 0.5 = 5 KW.
Wiki User
∙ 13y ago
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How is a machine's efficiency of a calculated?
Efficiency = useful output power / input power
What does efficiency have to do with work and work out?
Efficiency = (Useful Work done)/(Total Work done).This is usually expressed as a percentage.Example:For every 200KJ of energy released from coal in a power plant, only 60KJ is converted to electrical energy. Therefore, Efficiency = 60/200 =30%.
How is energy efficiency determined?
You divide useful output energy by the input energy. Or equivalently, useful output power by input power.
What is the name of the amount of useful energy you get from a system?
That may refer to the system's efficiency (which is formally the amount of useful output power divided by the amount of input power).
What does energy efficiency?
Energy conversion efficiency is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The useful output may be electric power, mechanical work, or heat.
What is energy efficiency ratio in electrical power consuming equipment?
Energy efficiency is the ratio between the useful power, and the electrical power used. If this ratio is - for example - 70%, that means that the remaining 30% of the input power is wasted.
How do you calculate voltage efficinecy in DC voltage?
The efficiency of a device in electronics and electrical engineering is defined as useful power output divided by the total electrical power consumed. Scroll down to related links and look at "Electrical efficiency - Wikipedia".
How is the efficiency of a machine calculated?
Efficiency = useful output power / input power
How is a machine's efficiency of a calculated?
Efficiency = useful output power / input power
What is efficiency and how is it calculated?
The efficiency is output divided by input.
What does efficiency have to do with work and work out?
Efficiency = (Useful Work done)/(Total Work done).This is usually expressed as a percentage.Example:For every 200KJ of energy released from coal in a power plant, only 60KJ is converted to electrical energy. Therefore, Efficiency = 60/200 =30%.
How is energy efficiency determined?
You divide useful output energy by the input energy. Or equivalently, useful output power by input power.
What is the name of the amount of useful energy you get from a system?
That may refer to the system's efficiency (which is formally the amount of useful output power divided by the amount of input power).
Why are electrical motors useful?
If you lose power the electric motor may supply power.
What is the name of energy amount of useful energy you get from a system?
That may refer to the system's efficiency (which is formally the amount of useful output power divided by the amount of input power).
What does energy efficiency?
Energy conversion efficiency is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The useful output may be electric power, mechanical work, or heat.
How can you calculate the efficiency of an appliance in terms of power?
vague question. Efficiency in terms of energy = useful energy/total energy x 100 vague question. Efficiency in terms of energy = useful energy/total energy x 100
