Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityCircuit AnalysisEasy2 minPYQ_2018

PhysicsEasysingle choice

In the given circuit, it is observed that the current $I$ is independent of the value of resistance $R_{5}$ . Then, the resistance value must satisfy

Options:

Answer:

Solution:

From the given circuit, we can say that $I$ is independent of resistance $R_{5},$ so no current flows through $R_{5} .$ This required that the junction of $R_{1}$ and $R_{2}$ is at the same potential as the junction of $R_{3}$ and $R_{4}$ (Wheatstone's bridge balancing condition)

So, $\frac{R_{1}}{R_{2}} = \frac{R_{3}}{R_{4}}$

or $R_{1} R_{4} = R_{3} R_{2}$

Stream:BITSATSubject:PhysicsTopic:Current ElectricitySubtopic:Circuit Analysis

⏱ 2mℹ️ Source: PYQ_2018

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