Consider a 20 µF capacitor connected to an 8.0 kV potential difference such that it is fully charged. The capacitor is then disconnected from the potential source, and a 200 ohm resistor is connected to the capacitor at t = 0. At what time t will the voltage across the capacitor have 50% of its original value?
A. 0.0020 s.
B. 0.0028 s.
C. 0.11 s.
D. 0.69 s.
Answer:B
Consider a 20 µF capacitor connected to an 8.0 kV potential difference such that it is fully charged. The capacitor is then disconnected from the potential source, and a 200 ohm resistor is connected to the capacitor at t = 0. At what time t will the voltage across the capacitor have 50% of its original value?
A. 0.0020 s. B. 0.0028 s. C. 0.11 s. D. 0.69 s.