A galvanometer has a coil with a resistance of 30 Q. A current of 80 µA causes full-scale deflection. If the galvanometer is to be used to construct an ammeter that deflects full scale for 10.0 A, what shunt resistor is required? a. 120 μΩ b. 240 μΩ c. 420 µ0 d. 540 μΩ

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