A Series LR Circuit Includes a 9 $\Omega$ What Is the Time Constant of This Circuit?
A)

question 50

Multiple Choice

A series LR circuit includes a 9.00 V battery,a 30.0 mH inductor,and a resistance of 5.00 $\Omega$ .What is the time constant of this circuit?

• A) 115 s
• B) 170 s
• C) 4.20 ms
• D) 6.00 ms
• E) 8.30 ms

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