Electrical exam prep that prepares you to answer electrical theory related questions is essential to passing your electrical exam. Often the answers to these types of questions cannot be found in a code book. Can you answer the following question with ease?
Question:
If an A.C. circuit has a current rating of 50 amps, what is the maximum value of the current in a cycle in amps?
Solution:
In an AC circuit the root mean square or effective current multiplied by the square-root of 2 (1.414) equals the peak or maximum current.
I(maximum) = I(RMS or Effective current) x 1.414
= 50 amps x 1.414
= 70.7 amps maximum current
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