An LR-series circuit has a variable inductor with the inductance defined by {1 - _!__t 0
Chapter 2, Problem 31(choose chapter or problem)
An LR-series circuit has a variable inductor with the inductance defined by {1 - _!__t 0 ::5 t < 10 L(t) = 10 ' 0, t 10. Find the current i(t) if the resistance is 0.2 ohm, the impressed voltage is E(t) = 4, and i(O) = 0. Graph i(t).
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