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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityCircuit AnalysisEasy2 minPYQ_2020

PhysicsEasysingle choice

If each resistance $r$ , is along the $12$ edges of a cubical skeleton of uniform wires, then find the equivalent resistance between $X$ and $Y$ , where $X$ and $Y$ are the midpoints of two opposite edges of a face of the cube.

Options:

Answer:

Solution:

Potential of point $D$ and $E$ and $H$ and $C$ are same. Hence,

$R_{e q} = \frac{\frac{3 r}{4} + \frac{r}{2} + \frac{r}{2}}{2} = \frac{7 r}{8}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Circuit Analysis

⏱ 2mℹ️ Source: PYQ_2020

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