7. Two wires of the same length and the same resistivityare connected

1.	7. Two wires of the same length and the same resistivityare connected in parallel. Find the ratio of their areas ofcross section if the ratio of their electrical resistancesis 4:3
Answer» ANSWER: Two wires X,Y have the same resistivity, but their cross-sectional areas are in the ratio 2:3 and lengths in the ratio 1:2. They are first CONNECTED in series and then in parallel to a.d.c. SOURCE.

7. Two wires of the same length and the same resistivityare connected in parallel. Find the ratio of their areas ofcross section if the ratio of their electrical resistancesis 4:3

Answer»

Two wires X,Y have the same resistivity, but their cross-sectional areas are in the ratio 2:3 and lengths in the ratio 1:2. They are first CONNECTED in series and then in parallel to a.d.c. SOURCE.

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7. Two wires of the same length and the same resistivityare connected in parallel. Find the ratio of their areas ofcross section if the ratio of their electrical resistancesis 4:3​​

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7. Two wires of the same length and the same resistivityare connected in parallel. Find the ratio of their areas ofcross section if the ratio of their electrical resistancesis 4:3