You are obviously doing something wrong. I don't see how we can determine what that is. Tell us more about the circuit that the resistor is in.
As nigel suggested, you could try a true RMS meter, however, some of them wont work at high frequencies. If you have access to a digital scope it can do the calculation for you. If you don't need it to be highly accurate, you could try to measure the temperature rise of the resistor and determine the power consumption (this is how some RMS meters work). If you can collect enough data points then you can calculate RMS voltage yourself.
yes.transistor495] Is that waveform produced from an electric chair in operation? [/QUOTE] No it is from an electronic ballast. The ferequency is about 45kHz. 2.[QUOTE=crutschow said:Are you measuring the voltage directly across the resistor?
How does it do that?Noggin said:If you have access to a digital scope it can do the calculation for you.
How do you know what the peak-to-peak voltage is?
Then you need to borrow or rent a very good (like HP) AC voltmeter which has wide bandwidth capability on it's true RMS function for AC voltage. Lower cost TRMS meters do not have enough bandwidth to get a decent reading at a frequency that high.Let me answer the questions at a time:
1. No it is from an electronic ballast. The ferequency is about 45kHz.
Did you capture this waveform on an oscilloscope? If so, then post a photograph of the scope display, showing the scale factors.
It's more stupid to laugh at people trying to learn and figure out problems and whome trying to help others.I am laughing so much at these stupid questions that it hurts.
There should be a website for NOOBs who know nothing about simple electricity.
I thought it was taught in junior high school.