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If there are only two contacts they are there to allow the capacitor to be connected into a circuit. If this is not a "just for fun" nonsense question, please describe the actual capacitor clearly and it may then be possible to give an answer. Please state: * the capacitance value (it is usually printed on the body of the capacitor) * the working voltage (if it is printed on the body of the capacitor) * the type of body (metal, plastic, etc) * the maker's name (if you know it - it may be shown on the body) * exactly how many contacts there are and where each contact is positioned

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Q: Describe the functions of the contacts on the top of the capacitor?
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