CAIE A-Level Physics A2 19.1.2 C Q V Topic Practice

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Question 1

[Maximum number: 2]

A capacitor C is charged so that the potential difference (p.d.) V across its terminals is 8.0 V . The capacitor is connected into the circuit of Fig. 6.1.

Fig. 6.1

Fig. 6.1

The switch is initially open. The switch is closed at time t=0.

Fig. 6.2 shows the variation of V with the charge Q on the plates of capacitor C as the capacitor discharges.

Fig. 6.2

Fig. 6.2

Determine the capacitance of capacitor C . Give a unit with your answer.

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