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To measure the resistance of the resisto...

To measure the resistance of the resistor `R_x` we use a circuit shown in figure. Ammeter shows current I = 2.0 A and voltmeter shows voltage V = 120 volts. It voltmeter resistance is `R_V = 960 Omega` what is the error in `R_X` (in ohm) if we use the approximate formula `R_X = V/I` ?

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