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Is an electric toothbrush input energy equal yo useful output energy?
Wiki User
∙ 14y ago
To my knowledge, the input energy would be less than the output due to the fact that no machine is 100% efficient. There would be some energy lost as a result of friction or some other such force that hinders efficiency.
Wiki User
∙ 14y ago
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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.
Does an electric can opener convert electric energy sound energy?
Not likely - any machine wastes some energy; that would reduce the useful output energy.
How is energy efficiency determined?
You divide useful output energy by the input energy. Or equivalently, useful output power by input power.
Total energy input equals equals the useful energy output plus?
Efficiency = ( useful energy output / total energy input ) x 100
What is the relationship between efficiency useful energy output and total energy output?
pie
What is the useful energy output that the CFL is designed to produce?
SEX energy
Does an electric iron convert electric energy to heat and motion?
heat(useful energy) and sound(waste energy)
A comparsion of energy output with energy input?
The result (ratio) of such a comparison is called the efficiency. Note that total energy output must be equal to energy input (conservation of energy); however, what is relevant for this comparison is the useful energy output.
What is the formula for efficiency of a machine?
useful energy output divided by total energy output x 100 give answer as a percentage, which is why you multiplied by 100
Does an electric generator motion produces magnetism or power or electricity?
An electric generator produces electrical energy. It converts mechanical energy to electrical energy by interacting with a magnetic field. The amount of electrical energy converted to useful work in a given time interval is the power output. If the generator is not connected to any load, then no work is done and there is no power.
What is true about any mechanical system?
The useful energy output is always less than the energy input.
How can the power of the sun be converted?
Photo-voltaic cells absorb solar radiation energy and produce direct current output. A number of these cells arranged as an array can produce a useful amount of electric power.
