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Calculate the resistance in a circuit in which a 9-volt battery produces 3 amperes. A)3 ohms B)6 ohms C)9 ohms D)27 ohms

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R= V/I

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27

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THERE ARE THREE SOURCES OF RESISTANCE IN A PARALLEL CIRCUIT . TWO OF THEM ARE RATED AT 20 OHMS, THE OTHER AT 10 OHMS .WHAT IS THE CIRCUIT,S TOTAL RESISTANCE

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