Consider an L-R circuit as shown in the figure. (Figure 1) The battery provides
ID: 1321328 • Letter: C
Question
Consider an L-R circuit as shown in the figure. (Figure 1) The battery provides 12.0V of voltage. The inductor has inductance L , and the resistor has resistance R = 150? . The switch is initially open as shown. At time t=0 , the switch is closed. At time t after t=0 the current I(t) flows through the circuit as indicated in the figure.
If the time constant characteristic of this circuit is 4.0010?4s , what is L , the inductance of the inductor?
Express your answer in millihenries.
Consider an L-R circuit as shown in the figure. (Figure 1) The battery provides 12.0V of voltage. The inductor has inductance L , and the resistor has resistance R = 150? . The switch is initially open as shown. At time t=0 , the switch is closed. At time t after t=0 the current I(t) flows through the circuit as indicated in the figure. If the time constant characteristic of this circuit is 4.00½10?4s , what is L , the inductance of the inductor? Express your answer in millihenries.Explanation / Answer
Time Constant
T=L/R
=>L=T*R =4*10-4*150
L=0.06 H or 60 mH