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PhysicsPractical physicsExperimental & Practical PhysicsEasy2 minPYQ_2008

PhysicsEasysingle choice

Shown in the figure below is a meter-bridge set up with null deflection in the galvanometer.
The value of the unknown resistor $R$ is

Answer:

Solution:

$\frac{55}{20} = \frac{R}{80} \Rightarrow R = \frac{55 \times 8}{2} = 220Ω$

Stream:JEESubject:PhysicsTopic:Practical physicsSubtopic:Experimental & Practical Physics

⏱ 2mℹ️ Source: PYQ_2008

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