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Current in Lamp Circuit
# 5D20.30


Description: Plot the Voltage and Current for a circuit lighting a 100 watt lamp. Voltage is supplied from a variac.

Parts: Variac, lamp, large current meter, [optional VideoFlex camera with monitor]

Quant. in Demo Room: 1

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 18-09 Plot current vs. voltage for carbon and tungsten lamps.
Freier and Anderson Eg-5 Measure current and resistance at various voltages for a carbon and tungsten bulb.

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