a. Rewrite the Farad in terms of Joules and Coulombs. Show work. +Q AVe b. The voltage across a 2 nF capacitor ("n"=nano=10–') is 15 Volts. What is the charge on the capacitor? "Charge on capacitor" means the charge on the positive plate.
a. Rewrite the Farad in terms of Joules and Coulombs. Show work. +Q AVe b. The voltage across a 2 nF capacitor ("n"=nano=10–') is 15 Volts. What is the charge on the capacitor? "Charge on capacitor" means the charge on the positive plate.
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Transcribed Image Text:1. A capacitor consists of two conductors (called plates) separated by an insulating gap. The plates are given opposite
charges +Q and -Q. This generates an electric field in the gap and a voltage difference between the plates. The
capacitance of a capacitor is the charge per voltage difference:
C =
AV
In this definition both Q and AV is taken as positive. The SI units of
8-0
capacitance is the Farad. It is named after the British experimental
physicist/chemist Michael Faraday (1791-1867).
а.
Rewrite the Farad in terms of Joules and Coulombs. Show work.
+Q
AV c
b. The voltage across a 2 nF capacitor ("n"=nano=10¬) is 15 Volts. What is the charge on the capacitor? "Charge
on capacitor" means the charge on the positive plate.
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