Question

A machine has an efficiency of 25 %. If energy is
fed into the machine at the rate of 1 kW, then the
output of the machine is:​

Answer 1

Answer:

A machine gun has efficiency 25% energy is fed into the machine at rate if 1KW . The output of the machine is what? Answer: 25% efficiency means, machine gives output of 25 when input is 100.

ANSWER

25%efficiency means machine gives an output of 25 when input is 100

In given question input is 1kW or 1000w.

Output = 25% of input

So the output= 25% of 1kw

= 250w

Step-by-step explanation:

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Answer 2

• $25%$% efficiency means machine gives an output of $25$

• when input is $100$

Given:

• In given question input is $1kw$  or $1000w$.
• Output = $25$% of input.
• So the output =$25$% of $1kw$ = $250w$.

Efficiency:

• The term efficieny refers to the peak level of performance that uses the least amount of inputs to achieve the highest amount of output.
• Efficiency requires reducing the number of unnecessary resources used to produce a given output, including personal time and energy.
• It is defined as the ability to produce something with a minimum amount of effort .
• An example of efficency is a reduction in the number of workers needed to make a car. with a minimum of effort, expense, or waste; quality or fact of being efficient.