In each part below, suppose that a single change were made to the original circu

Question

In each part below, suppose that a single change were made to the original circuit. For each change, select the graph that correctly shows how Q(t) would differ from the original graph (shown dashed).

If the inductor were replaced with a larger inductor, the graph would look like: (Select a graph)

If the capacitor were replaced with a smaller capacitor, the graph would look like: (Select a graph)

If there were initially less net charge on the capacitor, the graph would look like: (Select a graph)

Explanation / Answer

f=1/(2*pi*sqrt(LC))

1)frequency is proportional to1/ sqrt(L) so frequency will decreas. correct graph is graph B

2)frequency is proportional to1/ sqrt(C) so frequency will increase. correct graph is graph A

3) if charge is less,graph C is correct as only magnitude will change

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