In the figures, the value of a resistor "R" will be determined using the ammeter-voltmeter arrangement. The ammeter has a resistance of rA=0.5 Ω and the voltmeter rV=20000 Ω, within what interval of real values ​​of "R" the measured values ​​will be correct, up to within 5%, if the measurement is carried out according to circuits (a) and (b)

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