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Inductor current full value time

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    Inductor current full value time

    A coil has an inductance of 3 H and a wire resistance of 15 ohms. How long will it take for the current to reach its full value?

    TC=L/R
    5x TC=agreed to be essentially full value or steady state.

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  3. mcmahanrf is offline Junior Member Pro Subscriber
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    Had the right answer, test guy didn't like it

    I agree with your tip, the time constant should be 0.2 seconds and it should be fully charged at 1.0 seconds. I answered 1 and got it wrong so I'm guessing the question is written for the time constant to be the answer (0.2)




    Quote Originally Posted by test11 View Post
    A coil has an inductance of 3 H and a wire resistance of 15 ohms. How long will it take for the current to reach its full value?

    TC=L/R
    5x TC=agreed to be essentially full value or steady state.

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