Cedars1905 Cedars1905

29-12-2023
Physics

contestada

The same mass of copper is drawn into two wires A and B of radii r and 3r respectively. They are connected in series, and electric current is passed. The ratio of the heat proiduced in A and B is :
A. 1:9
B. 1:81
C. 81:1
D. 9:1

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