Author Question: A 25-mH inductor is connected in series with a 20- resistor through a 15-V dc power supply and a ... (Read 90 times)

dejastew · **on:** Jul 29, 2018

A 25-mH inductor is connected in series with a 20- resistor through a 15-V dc power supply and a switch. If the switch is closed at t = 0 s, what is the current when t = 2.0 ms?

A)

0.40 A
B)

0.50 A
C)

0.60 A
D)

0.70 A
E)

0.80 A

Question 2

An LR circuit consists of a 35-mH inductor, a resistance of 12 ohms, an 18-V battery, and a switch. What is the current 5.0 ms after the switch is closed?

A)

5.0 A
B)

0.27 A
C)

0.053 A
D)

0.75 A
E)

1.2 A