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Q: Is a ideal machine has an efficiency of less than one equal to one greater than one?

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No, an efficiency greater than one would not be possible, since that would violate a very fundamental law of physics: conservation of energy. The efficiency of an "ideal machine" would be one, in many cases; the efficiency of an ideal Carnot engine would be less than one.

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 .

Efficiency is equal to the ratio of work input to work output; for an ideal machine this ratio is equal to 1 or 100%. For a real machine this ratio is always less than 1 because some of the work input is used to overcome mechanical friction within the machine which does not contribute to the work output of the machine.

A ideal machine would have an efficiency of 100 percent. For this to be possible, the amount of energy output by the machine would equal the amount of energy input. Because all machines have physical parts, some energy is lost to friction, heat dissipation, or other factors, so no machine can be an ideal machine.

Machine closest to an ideal machine should consume with nearly 100% efficiency and deliver maximum to output... In reality there is no such machine exists... But we can say a machine is close to an ideal by checking its efficiency.

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.

In an ideal frictionless system, the work input equals the output and force. Your Welcome!!!

Yes, an ideal machine would have an efficiency of 100%, but no machine is ideal. Because some work is wasted in all machines, there will always be less than 100% efficiency in all machines.

In practical there is no machine which have efficiency 100%,i.e. output work = input work. But an ideal machine have efficiency of 100%, for an example a Carnot's heat engine. The efficiency of this engine is 100% but it is an ideal situation. As an expression of efficiency it is equal to W/Q, where W is work done by the system and Q is heat put into the system. For efficiency =1 ,i.e.100% if and only if W=Q and vice verse.

... of 1, or 100%.

an ideal machine

No. "Ideal" in this case means "the maximum that can be achieved under ideal circumstances". Therefore, the real mechanical advantage will be less than or equal to the ideal.

As there are many types of losses in a machine & these losses reduces the efficiency of that machine, hence ideal machine can never be there. For an ideal machine, its efficiency should be 100% i.e. Output of the machine= Input of the machine. But in practice, due to various losses & temperature effects, our output is always less than the input. For non ideal machine, input= output + losses.

An ideal machine is one in which no part of the input energy to the machine gets wasted and the whole input energy is converted into the useful work. The efficiency of such a machine is 100%.

No physical machine is ideal. Friction is always a loss of energy.

No heat loss = maximum output. There would be no loss of energy, which is an ideal condition.

The efficiency of a machine is usually expressed as a percentage. The ideal efficiency of a machine is 100-percent.Another AnswerThere are no units of measurement for efficiency, because you are comparing like with like: output power divided by input power.

Ideal machine

An ideal machine is a machine where the output of work is equal to the input of work. An example is any machine that is not subject to the forces of friction, which reduces the output.

At perfect 100% efficiency, the Actual Mechanical Advantage should equal the Ideal Mechanical Advantage.

Ideal mechanical advantage is what could be obtained without the effects of gravity and friction lowering the efficiency of the machine. The actual mechanical advantage is what can actually be obtained by the machine.

Ideal would be 100 percent. But you'll never get it. Due to the principle of conservation of energy, energy efficiency within a closed system can never exceed 100%. At a loutspeaker you have electrical Voltage as input and sound pressure as output. The efficiency of the loudspeaker is really only 1 percent.

Mechanical Efficiency is the ratio of Actual mechanical advantage to ideal mechanical advantage.Efficiency will be maximum when Actual mechanical advantage equals that of ideal.But practically not possible.Actual mechanical advantage will be less due to friction,heat,deflection etc.avoiding these loses will increase the machine efficiency.

== Actual mechanical advantage is the number of times force exerted on a machine is multiplied by the machine. Ideal force is just a theory. The formula for mechanical advantage is mechanical advantage== out put force divided by input force.The formula for efficiency is efficiency=output work divided by input work times 100%. Output force is the force exerted on the machine. Input force is the force you exert on the machine. ===

In mechanics, the term efficiency is the measure of the effectiveness with which a system performs.It is also stated as the ratio of a system's work output to its work input. For example, the efficiency of a real system is always less than 1 because of friction between moving parts. A machine with an efficiency of 0.8 returns 80% of the work input as work output; the remaining 20% is used to overcome friction. In a theoretically frictionless, or ideal, machine, the work input and work output are equal, and the efficiency would be 1, or 100%.