A switch, a 220 resistor, and a 60 mH inductor are in series across a – McqOptions

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1.	A switch, a 220 resistor, and a 60 mH inductor are in series across a 20 V battery. What is the current through the inductor two time constants after the switch is closed?
A.	91 mA
B.	78 mA
C.	57 mA
D.	400 mA
Answer» C. 57 mA

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