The ripple factor of a full wave rectifier is approximately MCQ with Answer and Explanation
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Question #1
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A 50 kg man climbs 30 steps each 20 cm high in 10 s. His power (g=10 m/s²) is
Correct Answer: Option D
Explanation:
Total height = 30 × 0.2 m = 6 m. Work done = mgh = 50 × 10 × 6 = 3000 J. Power = Work/time = 3000/10 = 300 W. If steps height and number given, calculate total vertical displacement. Time taken for climbing is important. Power is rate of doing work.
Total height = 30 × 0.2 m = 6 m. Work done = mgh = 50 × 10 × 6 = 3000 J. Power = Work/time = 3000/10 = 300 W. If steps height and number given, calculate total vertical displacement. Time taken for climbing is important. Power is rate of doing work.
Question #2
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The efficiency of a machine is 80%. If it lifts a load of 500 N through 2 m, effort applied through 10 m. Effort is
Question #3
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The unit of magnetic field strength is
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