The resistance of wire of length 5m, area of corss-section is 2 mm² and resistance is 10 ohms.
The resistance of another wire is 20 ohms with same material of length 20m & area of cross-section is 10 mm². Calculate the ratio of specific resistivity of these two wires.

Question

Raza Ahmed · Answer

R = PL/A Resistance = (specific resistivity x length of wire) / cross sectional area P1/P2 = (R1A1L2)/(R2A2L1) put values in SI units and get answer in this case answer is coming 2/5

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The resistance of wire of length 5m, area of corss-section is 2 mm 2 and resistance is 10 ohms. The resistance of another wire is 20 ohms with same material of length 20m & area of cross-section is 10 mm 2 . Calculate the ratio of specific resistivity of these two wires.

The resistance of wire of length 5m, area of corss-section is 2 mm² and resistance is 10 ohms.
The resistance of another wire is 20 ohms with same material of length 20m & area of cross-section is 10 mm². Calculate the ratio of specific resistivity of these two wires.

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The resistance of wire of length 5m, area of corss-section is 2 mm 2 and resistance is 10 ohms. The resistance of another wire is 20 ohms with same material of length 20m & area of cross-section is 10 mm 2 . Calculate the ratio of specific resistivity of these two wires.

The resistance of wire of length 5m, area of corss-section is 2 mm2 and resistance is 10 ohms.The resistance of another wire is 20 ohms with same material of length 20m & area of cross-section is 10 mm2. Calculate the ratio of specific resistivity of these two wires.

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The resistance of wire of length 5m, area of corss-section is 2 mm² and resistance is 10 ohms.
The resistance of another wire is 20 ohms with same material of length 20m & area of cross-section is 10 mm². Calculate the ratio of specific resistivity of these two wires.