Which of the following describes a system with high efficiency? No energy is transferred Most of the energy transferred is useful Most of the energy transferred is wasted All of the energy transferred is either wasted or useful

Question

Question

Which of the following describes a system with high efficiency? No energy is transferred Most of the energy transferred is useful Most of the energy transferred is wasted All of the energy transferred is either wasted or useful

Answer 1

Most of the energy transferred is useful.

Answer 2

## Step1: High efficiency in a system is quantitatively determined as the ratio of useful output over total input. This ratio includes, all forms of energy that we put into the system and the exact useful output that we need from the system. If the output equals the input, i.e., if all of the energy put into the system is converted into useful output with minimal loss to waste, then the system is deemed to be 100% efficient, a practically improbable condition considering conversion losses. ## Step2: Among the provided options, "No energy is transferred", "Most of the energy transferred is wasted", and "All of the energy transferred is either wasted or useful” are grossly misstated. They either correspond to impractical situations or significantly flawed systems. ## Step3: On the contrary, if "most of the energy transferred is useful," it characterizes a system with high efficiency though not perfectly efficient. Even though some energy might arbitrarily get wasted during conversion processes and not contribute to the primary function of the system, if the quantum of useful energy is quite most or a major portion of the total input, the system should be considered highly efficient.

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Which of the following describes a system with high efficiency? No energy is transferred Most of the energy transferred is useful Most of the energy transferred is wasted All of the energy transferred is either wasted or useful

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