Question: In a LR circuit with a switch, connected with a source of emf = 1 2 0 V , L = 7 H and R

In a LR circuit with a switch, connected with a source of emf =120 V,
L =7 H and R =9. What is the current when the switch is closed after
0.2 s. What are the voltages at this time across and L ?

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