Series Circuit with Light Bulbs
From UO Physics Demonstration Catalog
Revision as of 11:05, 20 April 2022 by Physdemo (talk | contribs) (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...")
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Description:
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 is dropped across it.
Location:
- Light Bulbs: Drawer 11
- Sockets: Shelf K-2
- Variac: Shelf K-4
