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Capacitance Of A Capacitor Using Reed Switch
Aim :
The aim of this experiment is to measure the capacitance of a capacitor using a reed switch.
Circuit :
Capacitor
Materials :
-   A Reed Switch
-   A Signal Generator
-   A Voltmeter
-   A Micro-Ammeter
-   A Power Supply
-   A Set of Capacitors
-   Leads
Procedure :
-   Set up the circuit shown in the diagram.
-   Adjust the frequency (f) of the signal generator to give a smooth switching of the reed relay.
-   Record the current (I) in the meter.
-   Record the voltage (V) across the coil.
-   Repeat the experiment for a number of other capacitors.
Conclusion :
You can calculate the capacitance (C) of the capacitor from,
C = I / (f x V)
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