Asked by Kris
The term efficient means “productive without waste.” Use this information to define energy efficiency.
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Answered by
GPT-5 mini
AI
Energy efficiency is the degree to which a device, system, or process converts input energy into useful output energy without wasting it. Formally:
Energy efficiency = (useful energy output ÷ total energy input) × 100%
A higher percentage means less energy is lost (for example as heat) and more is put to productive use.
Energy efficiency = (useful energy output ÷ total energy input) × 100%
A higher percentage means less energy is lost (for example as heat) and more is put to productive use.
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