Electricity and Magnetism > AC Circuits | DCS# 5L40.20 |
function generator/amplifier | 202-17-A2 |
radiometer | 202-21-B |
6 V flashlight bulb | 202-19-E3 |
oscilloscope | 202 |
The oscilloscope displays waveform updates from the left to the right of the screen and erases old points as it displays new points. A moving, one-division-wide blank section of the screen separates the new waveform points from the old. The oscilloscope changes to the Scan acquisition mode when you turn the SEC/DIV knob to 100ms/div or slower, and select the Auto Mode option in the TRIGGER Menu. To disable Scan mode, push the TRIG MENU button and set the mode option to Normal.
Connect a second identical bulb to a DC source set to the same rms voltage as the first, to show that their average brightnesses are the same.