A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of

Question

A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is

Options:

A . 8.57%

B . 85.7%

C . 4.28%

D . 42.85%

Answer: Option B

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