RLC Circuits: The figure shows a series ac circuit. The inductor has a reactance of 50 ? and an inductance of 220 mH. An 80-? resistor and a capacitor whose reactance is 160 ? are also in the circuit, and the rms current in the circuit is 2.2 A. What is the voltage amplitude across the capacitor?
A. 390 V
B. 330 V
C. 270 V
D. 220 V
E. 190 V
Answer: A
You might also like to view...
During the red giant phase, a star's mass ________
Fill in the blank(s) with correct word
A 75.0-kg swimmer dives horizontally off a 465-kg raft initially at rest. If the diver's speed immediately after leaving the raft is 5.00 m/s, what is the corresponding raft speed?
a. 31.0 m/s b. 375 m/s c. 0.806 m/s d. 1.24 m/s e. 5.00 m/s
The electron drift speed 
What effect, if any, does increasing the resistance in an RC circuit have on the charging of the capacitor?
a) The resistance has no effect on the charging of the capacitor, which is determined by the emf of the battery and the capacitance of the capacitor. b) Increasing the resistance causes the charging time to increase since the rate at which charges are moving to the capacitor increases. c) The charging time will increase as the resistance is increased because the rate at which charges are moving to the capacitor decreases. d) Increasing the resistance increases the charging time since the emf of the battery will be reduced. e) Increasing the resistance decreases the charging time since the emf of the battery will be reduced.