Question

The switch, U1, has been closed for a long time. a. What is the initial current in the inductor? b. What is the initial voltage across the inductor (t = 0+)? c. Find an expression for the voltage shown (across the 15 \Omega resistor) d. How much energy is stored in the inductor at t = 0+?

          The switch, U1, has been closed for a long time.
a. What is the initial current in the inductor?
b. What is the initial voltage across the inductor (t = 0+)?
c. Find an expression for the voltage shown (across the 15 \Omega resistor)
d. How much energy is stored in the inductor at t = 0+?

The switch, U1, has been closed for a long time.
a. What is the initial current in the inductor?
b. What is the initial voltage across the inductor (t = 0+)?
c. Find an expression for the voltage shown (across the 15 Ωresistor)
d. How much energy is stored in the inductor at t = 0+?

Added by Amanda L.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Eduard Sanchez

Step 1

When the switch U1 is closed for a long time, the inductor has reached a steady state. In a steady state, the current through an inductor is constant. Show more…

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The switch, U1, has been closed for a long time. a. What is the initial current in the inductor? b. What is the initial voltage across the inductor at t = 0? c. Find an expression for the voltage shown across the 15 Î© resistor. d. How much energy is stored in the inductor at t = 0? tOpen = 0 WM = 30 U1 WV = 30 0.40 200 mH