The ratio of the lengths, radii and resistivity of two metallic wires is 1:2 each. What is the ratio of the resistances of these two wires?
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Answer:
ratio is 1:4
Explanation:
As , eact metallic wire is 1:2
R1/R2 = 1/2 *1/2
R1/R2 = 1/4
R1:R2 = 1:4
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