Copper and carbon wires are connected in series and the combined resistor is kept

Copper And Carbon Wires Are Connected In Series And The Physics Question

Copper and carbon wires are connected in series and the combined resistor is kept at 0⁰C. Assuming the combined resistance does not vary with temperature, the ratio of the resistances of carbon and copper wires at 0⁰C is (Temperature coefficients of resistivity of copper and carbon respectively are 4×10⁻³/ ⁰ C and -0.5×10⁻³/ ⁰ C )

Options

(a) 4
(b) 8
(c) 6
(d) 2

Correct Answer:

8

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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Topics: Current Electricity (136)
Subject: Physics (2479)

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