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Monday, November 19, 2012

Elenco's PK-201 Experiment #8: Slow Light Bulb

This experiment demonstrates the charging and discharging of a capacitor. The charge/discharge time is controlled by resistors on either side of the capacitor. These resistors control the flow of electricity going to the capacitor (charge) and from the capacitor (discharge). The discharge is visualised by the LED in the experiment. The slower the LED dims, the larger the resistor is (ohms) that is controlling the discharge from the capacitor. The charge/discharge times are proportional to both the capacitance (amount of voltage a capacitor can hold) and the resistance in the charge/discharge path. In the below videos titles, the numbers followed by K are the charge and discharge resistor values (respectively), and the last number is the capacitor's capacitance in micro farads.
 
 
 
 
 
 

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