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Two resistances R and R are made of different materials The temperature coefficient of the...

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Two resistances R and R are made of different materials The temperature coefficient of the material of R is a and that of the material of R is B The resistance of the series combination of R and R does not change with temperature then the ratio of resistances of the two wires at 0 C will be 1 3 a B 2 B R 2 a 4 2215 10 1

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