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A certain electronic power supply requires 25 W of input power. It can produce an output power of 20 W. What is its efficiency in percentage and what is the power loss? | |
A. | 90% & 10W [Wrong Answer] |
B. | 70% & 2.5W [Wrong Answer] |
C. | 80% & 5W [Correct Answer] |
D. | 100% & 7.5W [Wrong Answer] |