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NEETPhysicsAlternating Current

How is the ampere defined for an alternating current, given that the attractive force averages to zero due to its changing direction with the source frequency?

Options

  1. AThe average of the attractive force over a full cycle
  2. BThe peak value of the attractive force over a full cycle
  3. CThe root mean square (rms) value of the Joule’s heating effect
  4. DThe peak-to-peak value of the Joule’s heating effect

Correct answer

C. The root mean square (rms) value of the Joule’s heating effect

Step-by-step solution

Correct Option is : (C) The root mean square (rms) value of the Joule’s heating effect

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