How long can a flashlight run for if it draws 0.11 amps and its battery contains 10 coulombs of charge?

Question

How long can a flashlight run for if it draws 0.11 amps and its battery contains 10 coulombs of charge?

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Ladonna 5 years 2021-08-19T19:29:19+00:00 1 Answers 10 views 0

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  1. linhdan
    0
    2021-08-19T19:30:33+00:00
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    Answer:

    Battery will run for t = 90 s

    Explanation:

    As we know that rate of flow of charge is known as electric current

    So we will have

    i = \frac{Q}{t}

    i = 0.11 A

    Q = 10 C

    now we have

    t = \frac{Q}{i}

    t = \frac{10}{0.11}

    t = 90 s

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