How to calculate the potential of a photocell?
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My guess is that because the wire is connected to a single point on the plate, we can treat it as a point charge and use the formula:
V=kk(±q)|r|V=kk(±q)|r|
But I think there are different situation. One is when a wire is connected the other when a wire is not.
When the wire is connected, there is really no accumulated charge on the plates, so I guess the formula doesn't work. So I don't know which formula to use, or what the formula is. I guess what matters is the KE of the ejected electron. If we increase the frequency of the coming photon above the threshold frequency, the potential will logically increase.
V=kk(±q)|r|V=kk(±q)|r|
But I think there are different situation. One is when a wire is connected the other when a wire is not.
When the wire is connected, there is really no accumulated charge on the plates, so I guess the formula doesn't work. So I don't know which formula to use, or what the formula is. I guess what matters is the KE of the ejected electron. If we increase the frequency of the coming photon above the threshold frequency, the potential will logically increase.
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