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A spool of copper wire 320 m long and with a diameter of 0.480 mm is at 20.0°C. For copper, the resistivity is 1.70 x 10
Posted: Wed Mar 09, 2022 9:17 am
by answerhappygod
- A Spool Of Copper Wire 320 M Long And With A Diameter Of 0 480 Mm Is At 20 0 C For Copper The Resistivity Is 1 70 X 10 1 (18.62 KiB) Viewed 58 times
A spool of copper wire 320 m long and with a diameter of 0.480 mm is at 20.0°C. For copper, the resistivity is 1.70 x 100m and the temperature coefficient of resistivity is 3.90 x 10(°C) (a) What is the magnitude of the electric field (In V/m) in the wire if it carries a current of 0.550 A? V/m (b) What is the electric power (In W) delivered to the spool while it carries a current of 0.550 A? w (c) What is the power in W) delivered to the spool if the potential difference across the wire is held constant and the temperature is increased to 310°C? w