0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is efficiency always less than?
It is always less than 1 or 100%.It is always less than 1 or 100%.It is always less than 1 or 100%.It is always less than 1 or 100%.
How do you prove that the efficiency C arnot is greater than 1?
You don't. Such an efficiency can be less than 1, but it can't be greater than 1.
Can a simple machine efficiency ever be greater than 100 percent?
No, due to the fact machines loose energy due to heat/thermal energy. you will always loose some amount of energy.
Is the remainder always greater than or less than the divisor?
It SHOULD always be less than the divisor... Otherwise your answer is wrong.
Are negative numbers always less than their absolute value?
Negative numbers are always less than their absolute value.
Explain why the amount of work that a machine does is less than the amount put into the machine?
Output work is always less than input work.
What is meant by efficiency of a machine?
It is the output energy compared to the input energy. This will always be less than 100%
What is a machine with efficiency of less than one?
no machine has one
How does effieciency of the machine affects it's performance?
if a machine is not efficient, it cannot fully utilise its performance. actual performance = efficiency x possible performance efficiency = actual performance / possible performance efficiency is always a decimal number less than 1, as no machine is perfect in terms of efficiency
Describe why a high-efficiency machine is more desirable than a low-efficiency machine?
Efficiency is the ratio of the energy converted into useful work by the machine to the energy supplied to the machine. Certainly it will not be possible to convert all the energy supplied into useful work because of wastage of energy due to so many reasons. So efficiency will be always less than 1. As the efficiency becomes more the loss would become less. Hence it is desirable.
The efficiency of an actual machine is always less than what percent?
It is always less than 100% Theoretical machines can have efficiencies of 100% but in practice there is always some energy loss Efficiencies of more than 100% are not allowed by the laws of thermodynamics!
What is efficiency always less than?
It is always less than 1 or 100%.It is always less than 1 or 100%.It is always less than 1 or 100%.It is always less than 1 or 100%.
If the output work of a simple machine is than the input work the machine is said to have less than 100 percent efficiency?
input
What is a machine in which work output is less than work input?
That means the efficiency is less than 100%. This is the case for any practical machine - some energy is always lost. Therefore, I don't think these machines have any special name.
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.
Can any pulley have a efficiency over 100?
No. A perfectly frictionless machine could have an efficiency of 100%. Anything less perfect must have can efficiency less than 100%.
In a machine work output is less than work input because some energy is converted into thermal energy.?
Yes some energy is lost in the form of heat and so the efficiency of the machine is always less than 1 ie 100%
