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MMLU-Pro / 11770 / What is the equation of a 25-cycle-current sine wave, having anrmsvalue of 30…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

What is the equation of a 25-cycle-current sine wave, having anrmsvalue of 30 amp, and what is the value of the current whenthe time is 0.005 sec ? What fraction of a cycle has the wavegone through in 0.005 sec ? Assume that the wave crossesthe time axis in a positive direction when the time is equalto zero.

category

engineering

options

  1. i= 42.4 sin 314t, 30 amp, 1/12 cycle
  2. i= 42.4 cos 157t, 25 amp, 1/6 cycle
  3. i= 30 sin 100t, 42.4 amp, 1/6 cycle
  4. i= 42.4 sin 157t, 30 amp, 1/8 cycle
  5. i= 42.4 cos 157t, 30 amp, 1/20 cycle
  6. i= 30 cos 157t, 42.4 amp, 1/4 cycle
  7. i= 30 sin 157t, 42.4 amp, 1/4 cycle
  8. i= 42.4 sin 50t, 35 amp, 1/10 cycle
  9. i= 60 sin 157t, 30 amp, 1/5 cycle
  10. i= 30 sin 157t, 35 amp, 1/10 cycle

src

stemez-ElectricalMachines

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Source and history

upstream_id / Original problem ID
11770
task_id
785be47a-1f36-59aa-8072-c25a98e67bf8
task_key
default--test--11770
task_revision_id
1
config / split
default / test

Official source

initial import