An isolated parallel plate capacitor contains charge Q = +10 ?C on its plates, c

Question

An isolated parallel plate capacitor contains charge Q = +10 ?C on its plates, corresponding to a potential difference of 10 V. The separation between the plates is d = 0.2 cm. What is the capacitance of this parallel plate capacitor if there is only air between its plates? A. 10 ?F
B. 1 ?F
C. 10 mF
D. 0.1 ?F 17. An isolated parallel plate capacitor contains charge Q = +10 ?C on its plates, corresponding to a potential difference of 10 V. The initial separation between the plates is d = 0.2 cm. What happens to the capacitance of this parallel plate capacitor if the charge is doubled? A. It doubles.
B. It stays the same.
C. It halves.
D. It quadruples. An isolated parallel plate capacitor contains charge Q = +10 ?C on its plates, corresponding to a potential difference of 10 V. The separation between the plates is d = 0.2 cm. What is the capacitance of this parallel plate capacitor if there is only air between its plates? A. 10 ?F
B. 1 ?F
C. 10 mF
D. 0.1 ?F 17. A. 10 ?F
B. 1 ?F
C. 10 mF
D. 0.1 ?F

Explanation / Answer

Q= CV

C = 10*10^-6 / 10 = 1 uF

B. 1 ?F

A. It doubles.

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