Current Electricity and Electrical InstrumentHard
Question
In the given circuit, it is observed that the current I is independent of the value of the resistance R6. Then, the resistance value must satisfy
Options
A.R1R2R3 = R4R5R6
B.
C.R1R2 = R2R3
D.R1R3 = R2R4
Solution
Current I can be independent of R6 only when R1, R2, R3, R4 and R6 from a balanced Wheatstone′s bridge.
Therefore,
or R1R2 = R2R3
Therefore,
or R1R2 = R2R3Create a free account to view solution
View Solution FreeTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
A wire of length L and 3 identical cells of negligible internal resistances are connected in series. Due to the current,...A galvanometer has resistance 36Ω. If a shunt of 4Ω is added with this, then fraction of current that passes t...A wire of uniform resistance $\lambda\Omega/m$ is bent into a circle of radius $r$ and another piece of wire with length...AB is a potentiometer wire of length 100 cm and its resistance is 10 ohm. It is connected in series with a resistance R ...A new electric store house of 1.5 emf of a flash gives a current of 15A, when it is connected with an electric ammeter o...