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Waste energy.
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∙ 7y ago
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What w is energy that is not useful?
Waste energy.
Machine is supplied energy at a rate of 4000 W and does useful work at a rate of 3760 W. What is the efficiency of the machine?
3760 / 4000 = 0.94 = 94% efficient
If electrical energy goes into a light bulb what useful energy comes out?
The useful energy that comes out is light energy. Heat energy is also produced but is not useful
Useful and non-useful energy transfers for coal?
Useful: Energy Light Sound Non-Useful: Electricity C02
Is it always easy to collect wasted energy and use it?
Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.
What we energy that is not useful?
Waste energy
A comparison of amount of energy before a conversion with the amount of useful energy after a conversion?
Usually, the amount of useful energy after a conversion will be less than the original energy. In no case can it be more.Usually, the amount of useful energy after a conversion will be less than the original energy. In no case can it be more.Usually, the amount of useful energy after a conversion will be less than the original energy. In no case can it be more.Usually, the amount of useful energy after a conversion will be less than the original energy. In no case can it be more.
Can energy be destroyed but not created?
Energy as such can NOT be destroyed - however, you can convert useful energy into unusable energy.Energy as such can NOT be destroyed - however, you can convert useful energy into unusable energy.Energy as such can NOT be destroyed - however, you can convert useful energy into unusable energy.Energy as such can NOT be destroyed - however, you can convert useful energy into unusable energy.
Is gold useful in energy production?
Currently, gold is not useful in any form of energy production.
How is energy efficiency determined?
You divide useful output energy by the input energy. Or equivalently, useful output power by input power.
What are useful and non-useful energy transfers in the production of electricity using coal?
Useful is the actual production of electricity. Non-useful -- unused heat energy released into the environment.
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
