At t = 0 the switch S is closed with the capacitor uncharged. If C = 30 ?F, ? = 50 V, and R = 10 k?, what is the potential difference across the capacitor when I = 2.0 mA?
a.
20 V
b.
15 V
c.
25 V
d.
30 V
e.
45 V
d
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A 58-? resistor, a 0.40-H inductor, and a 10.0-µF capacitor are connected in series to a 106-Hz source. The rms current in the circuit is 3.99 A. Find the rms voltage across the resistor, the inductor, and the capacitor
a. 231 V, 1063 V, 599 V (all rms) b. 231 V, 1063 V, 154 V (all rms) c. 599 V, 169 V, 154 V (all rms) d. 727 V, 169 V, 599 V (all rms) e. 727 V, 1063 V, 154 V (all rms)
A ball thrown upwards reaches a maximum height and then comes back down to the original level. As the ball is going upwards the velocity and acceleration both point up
a. True b. False Indicate whether the statement is true or false
A sample of helium occupies 44.8 L at STP. What is the mass of the sample?
A. 2.00 g B. 4.00 g C. 8.00 g D. 16.0 g
Current: What current is flowing in a wire if 0.67 C of charge pass a point in the wire in 0.30 s?
A. 2.2 A B. 0.67 A C. 0.30 A D. 0.20 A