Physics 2 Quiz
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ELECTROMAGNETIC INDUCTION
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An RL circuit consists of a resistor RR and an inductor LL connected in series with a battery of emf E0\mathcal{E}_0. Long after the switch is closed, the current has reached its steady-state value. The switch is then opened at t=0t = 0, and the inductor drives current through a "snubber" resistor RsR_s connected in parallel with the inductor (the battery branch is now open). Which of the following correctly describes the initial self-induced emf of the inductor at t=0+t = 0^+ and the time constant of the subsequent decay?
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