What are the peak-to-peak and RMS values of voltage with a maximum value of 170 V?

Study for the 3rd Class Power Engineering (3A2) Exam. Explore multiple choice questions with hints and explanations. Prepare for your certification!

The peak-to-peak voltage is calculated as twice the maximum voltage. In this case, since the maximum voltage is given as 170 V, the peak-to-peak value is 2 times 170 V, which equals 340 V. This correctly corresponds to the first option.

The root mean square (RMS) value of voltage for a sine wave is calculated using the formula: RMS = ( V_{\text{max}} / \sqrt{2} ). To find the RMS value for the given maximum voltage of 170 V, we take 170 V and divide it by the square root of 2 (approximately 1.414), resulting in a value of about 120.19 V. This matches the RMS value given in the first option.

Thus, the correct answer, with 340 V for peak-to-peak voltage and 120.19 V for RMS voltage, matches the calculations for a sine wave with a maximum value of 170 V. The values provided in the other choices do not correspond to the correct peak-to-peak and RMS calculations based on the given maximum voltage, confirming that the first option is indeed correct.

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