Current Electricity and Electrical InstrumentHard
Question
In the circuit shown in figure, ammeter and voltmeter are ideal. If E = 4V, R = 9Ω and r = 1Ω, then reading of ammeter and voltmeter are


Options
A.1A, 3V
B.2A, 3V
C.3A, 4V
D.4A, 4V
Solution
Given circuit can be reduced to

Reading of ammeter =
= 1A
Reading of voltmeter = 3 ×1 = 3V

Reading of ammeter =
Reading of voltmeter = 3 ×1 = 3V
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