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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityEquivalent ResistanceEasy2 minPYQ_2020

PhysicsEasysingle choice

Three resistances of $4 Ω$ each are connected as shown in the figure. If point $D$ divides the resistance into two equal halves, the resistance between points $A$ and $D$ will be

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Answer:

Solution:

The equivalent circuit is given by

$4 Ω$ and $2 Ω$ resistances are in series on both sides.

$∴ 4 Ω + 2 Ω = 6 Ω$

Then $6 Ω$ and $6 Ω$ resistances are in parallel.

$\frac{1}{R} = \frac{1}{6} + \frac{1}{6} = \frac{2}{6} = \frac{1}{3}$

$R = 3 Ω$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Equivalent Resistance

⏱ 2mℹ️ Source: PYQ_2020

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