Chloe is playing the flute some distance away from a crowd. If the atmospheric temperature is 15°C, what is the speed of the sou
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Answer:
D) Q/2
Explanation:
The amount of charge on a capacitor is given by:
Q = CV
where
C is the capacitance
V is the voltage
The capacitance of a parallel-plate capacitor is given by
where
is the vacuum permittivity
A is the area of the plates
d is the separation between the plates
Substituting the last formula into the first one, we can write
In this problem, the two plates are pulled apart to twice their original separation, so
d' = 2d
While the voltage V is kept constant. Therefore, the new charge stored in the capacitor will be