Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityCircuit AnalysisMedium2 minPYQ_2020
PhysicsMediumsingle choice

A resistance wire connected in the left gap of a metre bridge balances a10 Ωresistance in the right gap at a point which divides the bridge wire in the ratio3:2. If the length of the resistance wire is1.5 m, then the length of1 Ωof the resistance wire is:NEET 2020 (Phase 1)

Options:

Answer:
A
Solution:

R10=l1l2

R10=32

R=15 Ω

Length of 15Ω resistance wire is 1.5 m

∴ length of 1Ω resistance wire =1.515=0.1

=1.0×10−1 m

Stream:NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Circuit Analysis
⏱ 2mℹ️ Source: PYQ_2020

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