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A coil which has an inductance of 40mH and a resistance of 2Ω is connected together to form a LR series circuit. If they are connected to a 20V DC supply. Which is the final steady state valu

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A coil which has an inductance of 40mH and a resistance of 2Ω is connected together to form a LR series circuit. If they are connected to a 20V DC supply. Which is the final steady state value of the current ?

1A

10A

0,1A

100A

Giải thích

Chọn đáp án B