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Uncharged parallel-plate capacitor

If an uncharged parallel-plate capacitor (capacitance C) is connected to a battery, one plate becomes negatively charged as electrons move to the plate face (areaA). In the figure below, the depth d from which the electrons come in the plate in a particular capacitor is plotted against a range of values for the potentialdifference V of the battery. The vertical scale is set by ds = 3.50 pm, and the horizontal scale is set by Vs = 40.0 V. What is the ratio C/A? (Assume that thedensity of conduction electrons is n = 8.49 1028 m-3.)

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Answer #1
Yeah i figured it out halfway through writing that..lol
But yeah thats right^^
answered by: Electricity:providing energy
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Answer #2
8.49e28*1.6e-19*1e-12/20
answered by: Rana
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Answer #3
Thats not right^^

Im stuck on this one too.
I thought the formula is actually:
C/A=Density*Qelectron*distance/Voltage
8.49e28*1.6e-19*3.5e-12/40
answered by: Najib
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