Calculating t1: Current Through an Inductor

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SUMMARY

The discussion focuses on calculating the time t1 when the current through an inductor in a circuit becomes zero after the switch is opened. Given the circuit parameters of R = 60 Ohms, L = 5 mH, C = 40 microFarads, and an initial voltage e = 120 V, the correct answer for t1 is determined to be 0.70 ms. The problem assumes a series RLC configuration, which is crucial for solving the equation governing the inductor's behavior.

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Homework Statement


The circuit parameters are: R = 60 Ohms, L = 5 mH, C = 40 microFarads, and e= 120 V. Initially the switch has been closed for a long time. At t=0 the switch is opened.

What is t1, the first time greater than or equal to 0, that the current through the inductor is equal to zero?

a)t1=0
b)t1=2.11 ms
c)t1=0.70 ms

Homework Equations





The Attempt at a Solution



I really have no idea how to go about this question. Can someone help please?
 
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EDIT: if you read what I wrote about arcing - it was wrong. There would be no arcing in this case. It's a very simple situation.

Except for the part about the description of the circuit. It didn't specify the configuration. Had it said "series RLC" that would have been different. I am still assuming that's what's intended.
 
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