What Is the Inductance of a Series RL Circuit in Which

question 54

Multiple Choice

What is the inductance of a series RL circuit in which R = 1.0 K $\Omega$ if the current increases to one-third of its final value in 30 $\mu$ s?

• A)74 mH
• B)99 mH
• C)49 mH
• D)62 mH
• E)none of the above