To measure capacitance using a reed switch by W1NB3K

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									To measure capacitance using a
        reed switch
               Set-up of apparatus
Light beam       Signal    Vibrating     Parallel-plate
galvanometer     generator reed switch     capacitor
    Complete discharge of capacitance

                      Decay curve drops
                      to zero in half cycle.




C. R. O. connected across resistor in series with
light beam galvanometer.
    Incomplete discharge of capacitance

                     Decay curve cannot
                     drop to zero in half
                     cycle.




C. R. O. connected across resistor in series with
light beam galvanometer.

								
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