Current Electricity and Electrical InstrumentEasy
Question
In the circuit shown P ≠ R, the reading of galvanometer is same with switch S open or closed. Then
Options
A.IR = IG
B.IP = IG
C.IQ = IG
D.IQ = IR
Solution
As there is no change in the reading of galvanometer with switch S open or closed. It implies that bridge is balanced. Current through S is zero and IR = IG, IP = IQ
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