The switch in the circuit below has been closed for a long time. At t=0, the switch is opene t=0 12 V 3Ω www 4Ω www ell 2 H The inductor current just before the switch opens is 4A The inductor current just before the switch opens is i(0) Since inductor current cannot change abruptly, i(0)=i(0*)=i(0) When t>0 we have a source free RL circuit for t>0 the circuit time constant is 0.5 i(t) = 4*e-2t A The inductor energy is stored in its magnetic field For t>0 the inductor energy will be dissipated in the resistor

The switch in the circuit below has been closed for a long time. At t=0, the switch is opene t=0 12 V 3Ω www 4Ω www ell 2 H The inductor current just before the switch opens is 4A The inductor current just before the switch opens is i(0) Since inductor current cannot change abruptly, i(0)=i(0)=i(0) When t>0 we have a source free RL circuit for t>0 the circuit time constant is 0.5 i(t) = 4e-2t A The inductor energy is stored in its magnetic field For t>0 the inductor energy will be dissipated in the resistor

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter17: Resistive-inductive Series Circuits

Section: Chapter Questions

Problem 2PA: You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor...

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