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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityEquivalent ResistanceEasy2 minPYQ_2020

PhysicsEasysingle choice

Two wires that are made up of two different materials whose specific resistances are in the ratio $2 : 3$ , length $3 : 4$ and area $4 : 5$ . The ratio of their resistance is-

Options:

Answer:

Solution:

Use $R = \frac{ρ l}{A}$

$∴ \frac{R_{1}}{R_{2}} = \frac{ρ_{1} l_{1}}{\frac{A_{1}}{\frac{ρ_{2} l_{2}}{A_{2}}}}$
$5 : 8$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Equivalent Resistance

⏱ 2mℹ️ Source: PYQ_2020

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