The resistance of a wire is 5 ohm at 5 0 ∘ C and 6 ohm at 10 0 ∘ C . The resistance of the wire at 0 ∘ C will be

6 5 = 1 + 100 α 1 + 50 α 5 = R 0 ( 1 + α × 50 ) R 0 = 4

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PhysicsCurrent ElectricityEquivalent ResistanceMedium2 minPYQ_2007

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The resistance of a wire is $5 ohm$ at $5 0^{\circ} C$ and $6 ohm$ at $10 0^{\circ} C$ . The resistance of the wire at $0^{\circ} C$ will be

Answer:

Solution:

$\frac{5}{6} = \frac{1 + 50 α}{1 + 100 α}$ $5 = R_{0} (1 + α \times 50)$ $R_{0} = 4$

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Equivalent Resistance

⏱ 2mℹ️ Source: PYQ_2007

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