P31_092 - di dt = |E L 1 | L 1 = 6 . . 30 = 20 A / s . (b)...

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92. (a) As the switch closes at t = 0, the current being zero in the inductors serves as an initial condition for the building-up of current in the circuit. Thus, the current through any element of this circuit is also zero at that instant. Consequently, the loop rule requires the emf ( E L 1 )o fthe L 1 =0 . 30 H
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Unformatted text preview: di dt = |E L 1 | L 1 = 6 . . 30 = 20 A / s . (b) What is being asked for is essentially the current in the battery when the emfs of the inductors vanish (as t ). Applying the loop rule to the outer loop, with R 1 = 8 . 0 , we have E i R 1 |E L 1 ||E L 2 | = 0 = i = 6 . 0 V R 1 = 0 . 75 A ....
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