Author Question: A 17.0-mF capacitor is connected to an AC source with an rms voltage of 120 V and a frequency of ... (Read 76 times)

sabina · **on:** Jul 28, 2018

A 17.0-mF capacitor is connected to an AC source with an rms voltage of 120 V and a frequency of 60.0 Hz. What is the rms current in the capacitor?
a. 1.41 A
c. 0 A
b. 0.543 A
d. 0.769 A

Question 2

A standing wave is set up in a 2.0-m string fixed at both ends. The string vibrates in 3 distinct segments when driven by a 120-Hz source. In how many distinct standing wave segments will the string vibrate if the tension is increased by a factor of 4?
a. 3
c. 9
b. 6
d. No standing wave pattern occurs.