Question

If something is 50% efficient, how many joules of wasted energy will there be if 750J of energy is put in?

Answer 1

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↪Total energy = 750 J

↪Efficiency = 50%

↪Wasted energy = 50% [ 100% - 50%]

Amount of wasted energy

↦ 750 x 50%

↦ 750 x 0.5

↦ 375 J