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Entropy. There are always losses - usually by friction.
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∙ 6y ago
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Is a nuclear generator 100 percent efficient?
No, no machine is 100% efficient.
Can a machine ever be 100 percent efficient?
No. That would be the same as having a perpetual motion machine which is impossible.
Type of machine in which work input equals work output?
Any machine that is 100% efficient. (None exist.)
What must take place in order for work to be done?
Energy in some form must be expended, if the machine is 100 percent efficient the work done in Joules will equal the energy input in Joules, but of course machines are never 100 percent efficient, there are always some losses.
Distinguish between theoretical mechanical advantage and actual mechanical advantage How will these compare if a machine is 100 percent efficient?
When a machine is 100% efficient, theoretical and actual MAs are the same. Please let me know when you run across one of these.
Is a nuclear generator 100 percent efficient?
No, no machine is 100% efficient.
What role does friction have in reducing mechanical efficiency?
Friction is the reason that you can never have a 100% efficient machine. It is the reason that most machine have horrible efficiency.
How can an induction motor act as perpetual motion machine?
Perpetual motion machines are an impossibility. Energy conversion is never 100% efficient. Even if it were, friction is never zero.
Can a machine ever be 100 percent efficient?
No. That would be the same as having a perpetual motion machine which is impossible.
Type of machine in which work input equals work output?
Any machine that is 100% efficient. (None exist.)
What is the Maximum efficiency machine?
The electric space heater. It's the only common machine that's 100% efficient.
What must take place in order for work to be done?
Energy in some form must be expended, if the machine is 100 percent efficient the work done in Joules will equal the energy input in Joules, but of course machines are never 100 percent efficient, there are always some losses.
Distinguish between theoretical mechanical advantage and actual mechanical advantage How will these compare if a machine is 100 percent efficient?
When a machine is 100% efficient, theoretical and actual MAs are the same. Please let me know when you run across one of these.
What is the efficiency of a machine that miraculously converts all the input energy to useful output energy?
Such a machine would have an efficiency of 100% and, as the question suggests, it would be a miracle. No real machine is 100% efficient because there are always losses.
How is a real machine and an ideal machine different?
An ideal machine can reach 100% efficiency as there is no friction or other restraints involved, whereas a real machine can never reach 100% efficiency.
Why may an electrical heater be 100 percent efficient?
They can never reach that level of efficiency.
What is the difference between an ideal machine and a real machine?
In ideal machine input is equal to output . The efficiency of ideal machine is 100% . In real machine input is not equal to output .The efficiency of ideal machine in not 100% . In ideal machine there is no lose of energy . In real machine there is lose of energy . In real machine there is no friction . While in real machine there is friction .
