Current Electricity and Electrical InstrumentHard
Question
In the circuit shown the readings of ammeter and voltmeter are 4A and 20V respectively. The meters are non-ideal, then R is
Options
A.5Ω
B.less then 5Ω
C.greater then 5Ω
D.between 4Ω and 5Ω
Solution
(4 − I) R = IRV = 20 (4 − I) R = 20
4 − I is less than 4
So that, R is greater than 5Ω
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