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    1a. For the circuit shown below, what is the value of the R4 resistor if the current at point a is 5 amps?
    1b. What is the current at points b, c, and e?
    1c. For the same circuit, what are the voltage drops across R1, R2, and R3?

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    Solution Preview

    (a) R3 and R4 are in parallel, then the equivalent resistance is

    Then R, R1 and R2 are in series, so the overall equivalent resistance of the circuit is

    The current at point a ...

    Solution Summary

    The currents and voltage drops across the resistors are determined. The solution is detailed and well presented.