The RL circuit of Figure 916 is in the zero state when the input iSt = 2

The RL circuit of Figure 9–16 is in the zero state when the input iSðtÞ = ½2 cos 1000tuðtÞA is applied. Find iLðtÞ for t ≥ 0.

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4.00) 100 200 mH is(t)=2 cos1000r u(t) A FIGURE 9-16