2. How long is a wire made from 100 cm' of copper if its resistance is 8.5 ohms? The resistivity of copper is 1.7 x 10* m.
2. How long is a wire made from 100 cm' of copper if its resistance is 8.5 ohms? The resistivity of copper is 1.7 x 10* m.
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
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Chapter12: Electronic Control Devices
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Problem 14RQ
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![4:50 Ф Ь
ll all 24% -
1. A metallic conductor has a resistivity of 18 x 100-m. What is the resistance of a piece that is
30m long and has a uniform cross-sectional area of 3.0 x 10 m?
2. How long is a wire made from 100 cm of copper if its resistance is 8.5 ohms? The resistivity of
copper is 1.7 x 10Qm.
3. A 0.20-m-long metal rod has a radius of 1.0 cm and a resistance of 3.2 x 10 a. What is the
resistivity of the metal?
II](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb16dcd30-c0ad-4bdf-bd9d-6245ce04f186%2F804c1aa2-c810-4c23-967c-1332256d6b10%2Fllk6aeo_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4:50 Ф Ь
ll all 24% -
1. A metallic conductor has a resistivity of 18 x 100-m. What is the resistance of a piece that is
30m long and has a uniform cross-sectional area of 3.0 x 10 m?
2. How long is a wire made from 100 cm of copper if its resistance is 8.5 ohms? The resistivity of
copper is 1.7 x 10Qm.
3. A 0.20-m-long metal rod has a radius of 1.0 cm and a resistance of 3.2 x 10 a. What is the
resistivity of the metal?
II
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