Current Electricity and Electrical InstrumentEasy
Question
In the following arrangement, the resistance measured is given by Rmeasured =
, V = voltage reading of
voltmeter, i = current reading of ammeter. The ammeter and the voltmeter used are not ideal, but having resistances RA and RV respectively. For arrangement, the measured resistance is

voltmeter, i = current reading of ammeter. The ammeter and the voltmeter used are not ideal, but having resistances RA and RV respectively. For arrangement, the measured resistance is

Options
A.R + RV
B.R + RA
C.
D.
Solution
V = i(R + RA) ;
= Rmeasured = R + RA
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