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What causes the efficency of a machine to be less than 100 percent?
Wiki User
∙ 14y ago
That means that some energy is wasted. For example, it is quite common for part of the input energy to be converted into useless heat.
A drastic example is a traditional incandescent light bulb. Something like 5% of the energy gets converted into visible light. The remainder is radiated mainly as infrared - that is, heat radiation.
Wiki User
∙ 14y ago
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Why is mechanical efficiency always less than 100 percent?
That simply means that some energy is lost, due to friction and other causes.
Is 13 out of 8 less than 138 percent?
13 is 162.5 percent of 8 .
A percent change describing a decrease in a quantity?
Any percent less than 100.
What is 15 percent off of 175?
15 percent of 175 is 26.25; therefore, 175 less 15 percent is 148.75.
Is 6.7 more or less than 67 percent?
6.7 is more than 67 percent, as it is the same as 670 percent.
Why cant a machine put as much energy out as you put in?
Losses of energy within the machine- some of the energy is used up by friction, and converted to heat. There is also the matter of efficency of a machine. The less efficent, the more power you must put in to get the same output.
What causes goitre?
goitre is less of iodine percent in our body
Is it true that work output of a machine is always less than work input because of energy lost due to friction?
Yes this it true, because a percent of the input energy is converted to heat, which causes the output to became less than the input.
Why a normal machine could not have the mechanical efficiency of 100?
Because there is always going to be friction, the efficiency of any machine will always be less then 100 percent.
If load varies than efficency?
If loads varies then efficiency is less steeply than efficiency. This is taught in science.
The output work of a simple machine is than input work the machine is said to have less than 100 percent efficiency?
so wut exactly is ur question?
How does the output work compare to the input work for a machine that has an efficiency to less than 100 percent?
Then the output work is less than the input work. That description applies to every machine that has ever been built or will ever be built.
If the output work of a simple machine is than input work the machine is said to have less than 100 percent efficiency?
please rephrase ur question so that it can be understood
Does an ideal machine have an effciency of 100 percent?
No, there is not such thing as an ideal machine; it's just an idea.
Why is mechanical efficiency always less than 100 percent?
That simply means that some energy is lost, due to friction and other causes.
Is 50 percent less or greater than 55 percent?
less
How do lubricants help to improve a machine's efficieny?
Lubricants help to improve the efficiency of a machine by allowing for a lessening of friction between moving parts. This causes those parts to remain cooler and have less wear and tear in the long run.
