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L1-05: PERSISTENCE OF A FILAMENT
- zzfixk21
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12 years 3 days ago - 11 years 11 months ago #741
by zzfixk21
ID Code: L1-05
Purpose: To demonstrate that high-frequency AC looks like DC.
Description: A sealed beam car headlamp is run by an oscillator and audio amplifier. Below about 20 Hz the light flickers, but above 20 Hz it appears continuous. This persistence is caused partly by your eye and partly by the heating of the filament remaining relatively constant over the period of the applied AC voltage.
Availability: Available
L1-05: PERSISTENCE OF A FILAMENT was created by zzfixk21
ID Code: L1-05
Purpose: To demonstrate that high-frequency AC looks like DC.
Description: A sealed beam car headlamp is run by an oscillator and audio amplifier. Below about 20 Hz the light flickers, but above 20 Hz it appears continuous. This persistence is caused partly by your eye and partly by the heating of the filament remaining relatively constant over the period of the applied AC voltage.
Availability: Available
Last edit: 11 years 11 months ago by zzfixk21.
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