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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityEquivalent ResistanceMedium3 minQB

PhysicsMediumnumerical

In the circuit shown in the figure, the equivalent resistance between points A and B is $n R$ . Find the value of $n$ .

Answer:

1.50

Solution:

By symmetry the two ends of each vertical resistor are at equal potential, so the two vertical resistors carry no current and drop out.
Two identical A-to-B paths remain, each with three resistors in series ( $3 R$ ); in parallel they give:
$R_{e q} = \frac{3 R}{2} = 1.5 R$
$n = 1.5$

Subject:PhysicsTopic:Current ElectricitySubtopic:Equivalent Resistance

⏱ 3mℹ️ Source: QB

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