The potential difference deltaV between two isolated conductors depends on their
ID: 1637145 • Letter: T
Question
The potential difference deltaV between two isolated conductors depends on their net charges and their physical arrangement. If the conductors have charge +Q and -Q, the ratio Q/DeltaV is called the capacitance (C) of the particular arrangement of conductors.
D:
For the following cases, state whether each of the quantities q, sigma, E, deltaV, and C changes or remains fixed:
I . two insulated conducting plates are moved farther apart
2. two conducting plates connected to a battery are moved farther apart
Explanation / Answer
1. Plates are moved a part,
q doesn't change since charge always fixed to particular plate
sigma doesn't change since q doesn't change
E change because E is dependent of E
Delta V changes, potential difference depend on distance between conductors
C also changes as Delta V changes
2. Battery connected means potential difference is fixed
q doesn't change
Sigma doesn't change
E changes as distance changes
Delta V doesn't change
Therefore D doesn't change
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