Question

1. An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 2.10 mm. If a 25.0 V potential difference is applied to these plates, calculate the following.

(a) the electric field between the plates kV/m

(b) the capacitance pF

(c) the charge on each plate

2. A series circuit consists of a 0.054 µF capacitor, a 0.140 µF capacitor, and a 405 V battery. Find the charge for the following situations.

(a) on each of the capacitors
µC (0.054 µF capacitor)
µC (0.140 µF capacitor)
(b) on each of the capacitors if they are reconnected in parallel across the battery
µC (0.054 µF capacitor)
µC (0.140 µF capacitor)

Answer 1