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    Relation between current and total charge flow

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    A battery supplies a 0.015 A current to a small radio. How long should the radio stay on so that 4.80 C passes through each of the following parts of the circuit:

    A. the battery
    B. The Radio
    c. The connecting wires

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    Solution Preview

    Electric charge is conserved. This means that the total charge of an isolated region cannot change. If the region is not isolated then the total charge can only change if charges flow away from it or move into it.

    In this case the current flows from the battery through the connecting ...

    Solution Summary

    The solution is explained in detail. The relation between the current and total charge flows are found.