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      Question

      In AC circuits, AC meters measure –

      A mean values Correct Answer Incorrect Answer
      B rms values Correct Answer Incorrect Answer
      C peak values Correct Answer Incorrect Answer
      D mean square values Correct Answer Incorrect Answer

      Solution

      Voltages and currents for AC circuits are generally expressed as rms (root mean square) values. For a sine wave, the relationship between the peak and the rms average is: rms value = 0.707 peak value.

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