Author Question: An RL circuit has L = 0.40 H and R = 5.0 W. It is connected to a battery with e = 22 V at time t = 0 ... (Read 90 times)

SAVANNAHHOOPER23 · **on:** Jul 28, 2018

An RL circuit has L = 0.40 H and R = 5.0 W. It is connected to a battery with e = 22 V at time t = 0 . Find the energy stored in the inductor when the current in the circuit is 2.3 A.
a. 5.0 J
c. 50 mJ
b. 2.0 J
d. 1.1 J

Question 2

If the speed of a wave on a violin string is 400 m/s, what will be the speed of the wave if the tension in the string is halved?
a. 100 m/s
c. 280 m/s
b. 200 m/s
d. 570 m/s