Question: The switch in Figure P21.67 is closed, and 5.5 s later the current is measured to be 0.10 A. (a) What is the inductance L?

The switch in Figure P21.67 is closed, and 5.5 μs later the current is measured to be 0.10 A.
(a) What is the inductance L?
(b) What is the maximum current in this circuit?
(c) When is the current half of this maximum?

20 Ω ww 12 V -- Figure P21.67

20 ww 12 V -- Figure P21.67

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