Engineering Board Exam Reviewer · Alternating Current and Voltage · medium
What is the rms value of the symmetrical square wave shown?
- 8.49 V
- 7.64 V
- 12 V
- 24 V
Answer
C. 12 V
Solution
The square wave is at +12 V for half the cycle and -12 V for the other half, so v2=144 V2 at every instant. Vrms= mean of v2=12 V.
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