Current Electricity and Electrical InstrumentHard
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
, V = voltage reading ofvoltmeter, 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
= Rmeasured = R + RACreate a free account to view solution
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