The output energy of a good machine is always greater than the input energy.

True

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False

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Solution

The correct option is B False
The output work is always less than the input work because some input work is used to overcome friction.
Therefore, efficiency is always less than 100 percent.
All machines make work easier, but they don't increase the amount of work that is done by machines or say output work.
Hence, the given statement is false.

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Similar questions

The output energy of a real-life machine is less than input energy because of :

The output energy of real-life machines is always less than the input energy. Give two reasons for this deficiency.

State whether in actual machines, the output energy is greater or lesser than input energy. Give reason.

The ratio between the input energy to the output energy of a machine is called its efficiency.

In a machine, the output is always ……. than the input.

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