Current Electricity and Electrical InstrumentEasy
Question
An unknown resistance R1 is connected in series with a resistance of 10 Ω. This combination is connected to one gap of a metre bridge while a resistance R2 is connected in the other gap. The balance point is at 50 cm. Now, when the 10 Ω resistance is removed the balance point shifts to
40 cm. The value of R1 is (in ohms) : -
40 cm. The value of R1 is (in ohms) : -
Options
A.20
B.10
C.60
D.40
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