Copper wire of diameter 0.289 cm is used to connect a set ofappliances at 120 V. which draw 1450 W of power total. Theresistivity of copper is 1.68 x 1082. mPart AWhat power is wasted in 28.0 m of this wire?Express your answer to three significant figures and include the appropriate units.Paisipated =ValueUnitsSubmitRequest AnswerPart BWhat is your answer if wire of diameter 0.457 cm is used?Express your answer to three significant figures and include the appropriate units.HAPaissipated =ValueUnitsSubmitRequest Answer

diameter of copper wire = 0.289 cm Radius of copper wire = 0.1445 cm V = 120 volts Total power =…

Copper wire of diameter 0.289 cm is used to connect a set of appliances at 120 V. which draw 1450 W of power total. The resistivity of copper is 1.68 x 1082.m Part A What power is wasted in 28.0 m of this wire? Express your answer to three significant figures and include the appropriate units. HA Paissipated = Value Units Submit Request Answer Part B What is your answer if wire of diameter 0.457 cm is used? Express your answer to three significant figures and include the appropriate units. HA ? Pasinated = Value Iuito

Copper wire of diameter 0.289 cm is used to connect a set of appliances at 120 V. which draw 1450 W of power total. The resistivity of copper is 1.68 x 1082.m Part A What power is wasted in 28.0 m of this wire? Express your answer to three significant figures and include the appropriate units. HA Paissipated = Value Units Submit Request Answer Part B What is your answer if wire of diameter 0.457 cm is used? Express your answer to three significant figures and include the appropriate units. HA ? Pasinated = Value Iuito

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 55P: A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any...

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A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any wires used for connections is negligible, (a) What is the current through the resistor? (b) What is the power dissipated by the resistor? (c) What is the power input from the battery; assuming all the electrical power is dissipated by the resistor? (d) What happens to the energy dissipated by the resistor?
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