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hello. i am looking at an example in my book again.
the example has 2 metal cylinders with a distance, d between them
the problem states that a voltage V(t) is applied between the plates
what do they mean by that?
i thought it was an oscillating voltage, since they have an sin(kt) term in the V(t) equation. is that different from the capacitor being charged at a constant rate by a steady current.
Recall that the charge (Q) in a cylindrical capacitor is;
Q(t) = C·V(t)
where C is the capacitance and V(t) is the applied voltage. Differentiating, we get the current I(t);
I(t) = C·dV(t)/dt
Hope this helps.
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thanks for quick reply .
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