- #1
jars121
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Homework Statement
I've spent the last hour trying to get this, and it's starting to drive me crazy! I'm not sure how to approach the waveform, as there are two forms? I'm guessing that the period in this case is 4 seconds, and they've included a second wave to reiterate that?
Homework Equations
I started out using the general RMS equation:
V2RMS = √((1/T)*∫V2dt)
The Attempt at a Solution
I split the voltage into the 3 components ie. 0<t<1, 1<t<3 and 3<t<4.
I integrated each of these sections, and then calculated the RMS by adding each component, squared, within a square root.
ie. VRMS, total = √(VRMS, A)2 + VRMS, B)2 +VRMS, C)2)
I ended up getting ~12, and I know that the answer is 3.3325V.
Can anyone point me in the right direction, as well as give some general advice on approaching these type questions?
Cheers
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