Recent content by pjrobertson
-
P
How Do You Calculate RMS and Average Voltages for Different Waveforms?
Hmm... using v(t) = m t + b I get: V_A(t) = \frac{30t}{T} V_B(t) = 20 - \frac{30t}{T} So I tried integrating all of this, then taking the root (long and tiring process!) and I got V_RMS = 4.71V Does this sound about right? Here's the integration I did (without the square root)...- pjrobertson
- Post #7
- Forum: Engineering and Comp Sci Homework Help
-
P
How Do You Calculate RMS and Average Voltages for Different Waveforms?
I still can't seem to figure out the RMS values. The problem I have is determining the functions V(t) for each section of the wave. I have an exam on this tomorrow so any help would be appreciated!- pjrobertson
- Post #5
- Forum: Engineering and Comp Sci Homework Help
-
P
How Do You Calculate RMS and Average Voltages for Different Waveforms?
That's the problem, I don't know what to write the equations as. The triangular wave has 3 functions. One for 0 - \frac{T}{3} (upwards slanting triangle) one for 0 - \frac{2T}{3} (downwards slanting triangle) and one for the last part of the waveform, which is just V(t) = 0. What are the...- pjrobertson
- Post #3
- Forum: Engineering and Comp Sci Homework Help
-
P
How Do You Calculate RMS and Average Voltages for Different Waveforms?
Homework Statement I need to find the average and RMS voltages for the waves (See attached pictures) but I'm not sure exactly how to do it as I don't know how to get an equation for V(t) Homework Equations I Know: VRMS = \sqrt{\frac{1}{T}\int V(t)^2 dt} between 0 and T And for...- pjrobertson
- Thread
- Rms Waves
- Replies: 7
- Forum: Engineering and Comp Sci Homework Help