phy2049_f11_exam2_practice

1 33 x 10 13 t 2 15 x 10 13 t 3 22 x 10 13 t

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Unformatted text preview: V (2) 0.25 V (3) 0.125 V (4) 0.0625 V (5) 1 V 7. An inductor of inductance L=10 H and resistance R = 2 Ohm is plugged into a DC source of EMF at t=0. How long does it take for the current through the inductor to reach 80% of its maximum? (1) 2.0 s (2) 5.0 s (3) 1.1 s (4) 10 s (5) 8.0 s 8. The current through an inductor with inductance L=0.1 H is shown by the graph, with the direction from left to right through the inductor as shown. What is the EMF across the inductor (VL= Vright - Vleft), including sign, at...
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