Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityEquivalent ResistanceEasy2 minPYQ_2008

PhysicsEasysingle choice

A wire of a certain material is stretched slowly by ten percent new resistance and specific resistance become respectivelyNEET 2008 (Mains)

Answer:

Solution:

$\frac{R _{2}}{R _{1}} = (\frac{l _{2}}{l _{1}})^{2} = (\frac{1.1 l _{1}}{l _{1}})^{2} = 1.21 R_{2} = 1.21 R$

Stream:NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Equivalent Resistance

⏱ 2mℹ️ Source: PYQ_2008

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