AboutDave Nyce Expertise I have been an electronics engineer for 25 years. I can answer questions on analog and digital circuits and my specialty is sensors.
Experience I am the inventor on 23 US patents, and also some foreign ones. Developed sensors for over 25 years. Licensed private pilot (airplane and rotorcraft), have HAM radio license. I'm not an expert in computer networking.
Expert: Dave Nyce Date: 8/9/2003 Subject: oscilloscope
Question I am using the multisim 2001 program to learn how to test with the oscilloscope and I am testing an RL circuit for VRp-p and VLp-p.In doing this test I hook up the A channel to the input side of the resister and the B channel to the output side of the resister and my question is which of the two waves do I use to get my readout for the p-p voltage across the resister?
Answer Normally you would connect the A channel to the input side, B to the output side, and trigger on A. It shouldn't matter, though, because most mdern oscilloscopes usually have a variable delay time and you can still synchronize if you use either channel for the trigger. Depending on your circuit configuration, and remembering that voltage leads the current in an inductor, the peak voltage on the inductor should appear before the peak voltage on the resistor.
