O Level Physics MCQs – Certification Test 759

Efficiency: O Level Physics MCQ (Question 759) – App & e-Book Download

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MCQ 759: Efficiency of a machine is 80% and total energy input is 2000 J. output of machine is:

2500 J
1600 J
1000 J
2080 J

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O Level Physics MCQ App & e-Book – Efficiency: O Level Physics Entry Tests

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