Two resistors R 1 = 15.0 ? , and R 2 = 10.5 ? are connected with a 330 mH induct

Question

Two resistors R1 = 15.0 ?, and R2 = 10.5 ? are connected with a 330 mH inductor, a 12.0 V battery and a two-way switch as shown in the diagram below. At t = 0, the switch ab is closed.

(d) Determine the time constant for this circuit after ac is closed. (Enter your answer to at least four decimal places.)

.01294 s

e) What is the current in the inductor at t = 0.005 s after ac is closed? (Enter your answer to at least four decimal places.)

_____________ A

I got part D, I need help with part E

Two resistors R1 = 15.0 ?, and R2 = 10.5 ? are connected with a 330 mH inductor, a 12.0 V battery and a two-way switch as shown in the diagram below. At t = 0, the switch ab is closed. Determine the time constant for this circuit after ac is closed. (Enter your answer to at least four decimal places.) 01294 s What is the current in the inductor at t = 0.005 s after ac is closed? (Enter your answer to at least four decimal places.) A I got part D, I need help with part E

Explanation / Answer

I = (V/R1) x e^(-(R1+R2) x t /L)

=(12/ 15 ) x e^(-( 10.5+ 15) x 0.005/ 0.33)

=0.5436 amperes

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