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PhysicsClassical Physics

Capacitance: Charge and Energy of 2.00 μF and 7.40 μF Capacitors at 9.00 V

Calculate charge and stored energy for two capacitors across a 9.00 V battery, with separate results for series and parallel connections.

Question

A 9.00 V battery is available with two capacitors rated 2.00 μF and 7.40 μF.

(a) Determine the stored charge and energy when both capacitors are connected in series across the battery.

(b) Determine the same quantities when they are connected in parallel across the battery.

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Evidence boundary

This is an editorial restatement of OpenStax College Physics, BCcampus 2016 edition, Section 19.7 Exercise 4. It treats the capacitors as initially uncharged, ideal components connected across the stated battery until charged. Values are theoretical predictions, not measured results; charge denotes the magnitude on one plate or at a bank terminal, not the net charge of a complete capacitor.