Lab 9: RC Circuits 1
Staci Williams
Nicole Harty, Kevin Schesing, Caitlin Kubota
Section 015
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View Full DocumentTheory:
The voltage across a resistor is proportional to the current through the resistor and the
voltage across a capacitor is proportional to the time integral of the current into the
capacitor. The voltage across
an inductor is proportional to the time derivative of the
current through the inductor
Capacitors
A capacitor is a 2 terminal circuit element that stores energy in its electric field,
consisting of two parallel plates separated by a small gap, which is usually filled with a
nonconducting dielectric material. If a positive current I enters one plate of a capacitor
ad exits the other plate a positive charge Q builds up on the first plate and a negative
charge –Q builds up on the second plate. A voltage Vc develops across the capacitor and
the charge Q and voltage Vc are linearly related by the equation
Q=CVc
where C is a
constant called the capacitance. The units of capacitance if the farad (F), and the
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 Spring '10
 Adler
 Physics, Derivative, Current, RC Circuits, Electric charge, RC circuit, Symmetric Square Wave

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