It takes 22 J of energy to move a 0.30-mC charge from one plate of a...
It takes 22 J of energy to move a 0.30-mC charge from one plate of a 15-μF capacitor to the other. Neglect the change of the charge on the capacitor.
Part A
How much charge is on each plate?
Express your answer using two significant figures and include the appropriate units.
Homework Answers
W = work done in moving the charge = 22 J
V = potential difference between the plates
Q = charge being moved
W = QV
22 = 0.3 x 10-3 V
V = 73333.33 volts = 7.3 x 104 volts
C = capacitance = 15 x 10-6 F
q = charge stored = CV = (15 x 10-6 ) (7.3 x 104 ) = 1.1 C
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