Combined display of all available logs of UO Physics Demonstration Catalog. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 11:05, 20 April 2022 Physdemo talk contribs created page Series Circuit with Light Bulbs (Created page with "{{NewDemo|subject=Electricity and Magnetism|topic=Resistance, EMF, and Current|file1=}} Two light bulbs are hooked in series. A third light bulb is connected directly to a variac (120v). The two series bulbs are half as bright and when the variac is adjusted to the brightness of the series bulbs it is at 50%. When a 75w bulb and a 25w bulb are connected in series only the 25w bulb lights up because it has a higher resistance and therefore most of the available voltage i...")