RC Circuits: For the circuit shown in the figure, C = 13 µF and R = 7.6 M?. Initially the switch S is open with the capacitor charged to a voltage of 80 V. The switch is then closed at time t = 0.00 s. What is the charge on the capacitor 40 s after closing the switch? 
A. 3300 µC
B. 3100 µC
C. 2900 µC
D. 2700 µC
E. 2500 µC
Answer: A
You might also like to view...
Magnifying Glass With the Image at Infinity: The focal length of a magnifying glass is 15 cm. If the near point of a person is 25 cm, what is the angular magnification of the glass for this person when his eyes are focused at infinity?
A. 1.7 B. 2.7 C. 3.7 D. 4.7 E. 5.7
What is true of the Moon's orbital and rotational periods?
A) The rotational period is longer. B) The orbital period is longer. C) The rotational period varies with the Moon's phase. D) They are equal. E) The orbital period is greatest at full moon.
In order to find the depth of a well, you drop a stone into it and time its fall. It hits the water after falling for 1.5 s. The depth of the well is about
A. 20 m. B. 11 m. C. 14 m. D. 7.35 m.
Waves travel along a 100-m length of string with a mass of 55 g, which is held taut by a tension of 75 N. What is the speed of the waves?
A) 3700 m/s B) 370 m/s C) 37 m/s D) 0.37 m/s E) 3.7 m/s