Alternating Voltages and Currents?

3 ⤊

Alternating Voltages and Currents?

What is the rms value of the voltage plotted in the graph? the web page for the graph is below:

http://i54.photobucket.com/albums/g99/cartoona222com/fisik1.jpg

Click into that web page and please help me qith my hwk!!

2007-04-11 05:26:06 · 0 answers · asked by Anonymous in Science & Mathematics ➔ Physics

0 answers

Looks like a graph of good old 120Vrms (household outlet voltage), which is 169.7Vpeak (120 * √2)

2007-04-11 05:52:13 · answer #1 · answered by Adam S 4 · 1⤊ 0⤋

rms voltage = max voltage / sqrt2

From graph max voltage looks to be 170 V

rms voltage=170/sqrt2 = 120.21 Volts

2007-04-11 05:40:56 · answer #2 · answered by Anonymous · 2⤊ 0⤋

.707 times the peak

2007-04-11 05:43:59 · answer #3 · answered by Gene 7 · 0⤊ 0⤋