0
The question is a little vague, but if I understand correctly, you're asking why a machine doesn't release as much energy as you put in to it. The reason for this is that energy is very unpredictable. For instance, if you add 1000 W into an electric kettle, not all the energy will go into heating the water. Some of the energy gets lost in the wires, some of the released heat might go into the air, some of the water might boil, etc. The same thing applies for all other machines.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoGenerally, friction losses redcuce efficiency.
Add your answer:
Earn +20 pts
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.
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 force that prevents all machines from being 100 percent efficient?
Friction is the force that prevents all machines from being 100 percent efficient. It produces a resisting force that hinders the machine's complete functioning. Reducing friction will enhance efficiency.
If a machine was 100 percent efficient how would the AMA compare to the IMA?
At perfect 100% efficiency, the Actual Mechanical Advantage should equal the Ideal Mechanical Advantage.
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.
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 force that prevents all machines from being 100 percent efficient?
Friction is the force that prevents all machines from being 100 percent efficient. It produces a resisting force that hinders the machine's complete functioning. Reducing friction will enhance efficiency.
If a machine was 100 percent efficient how would the AMA compare to the IMA?
At perfect 100% efficiency, the Actual Mechanical Advantage should equal the Ideal Mechanical Advantage.
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.
How efficient is a small space heater?
it is not very efficientAnswerThey are 100 percent efficient.
Are electric heaters 100 percent efficient?
No. Nothing is 100 percent efficient. In any situation some energy will be given off in a form that is useless to us.
Are turbines 100 percent efficient?
Basically, almost NO physical process is 100% efficient.
Why are wind turbines not 100 percent efficient?
In any machine some energy is always lost as heat. In a wind turbine most of this will be created by friction between parts.
Can a machine be more than 100 percent efficient?
100% efficiency would mean that the machine is able to transform energy from one form into another without any loss of energy from the system in the process. For it to have greater than 100% efficiency, it would have to somehow generate additional energy, not contained in the system, in the process, and this is not possible.
Explain why machines are not 100 percent efficient?
because they are not proper
