Current Electricity and Electrical InstrumentHard

Question

Find current through the resistance 4Ω if resistance of voltmeter is 4Ω.
     

Options

A.1/2 A
B.3/2 A
C.1 A
D.3/4 A

Solution

CKt can be reduced as

Which is balanced WSB So

VBC = × 9
= 6V
Vi4Ω = A

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