1. A 1.250 V battery is attached across a length of gold wire with a radius of 0.250 mm. (Pgold ) (a) If you want the current to be 125 mA, how long should the wire be? (b) What is the current density? (c) How much energy would be delivered to the wire every second? (i.e. find the power) = 2.35 × 10-8m

1. A 1.250 V battery is attached across a length of gold wire with a radius of 0.250 mm. (Pgold ) (a) If you want the current to be 125 mA, how long should the wire be? (b) What is the current density? (c) How much energy would be delivered to the wire every second? (i.e. find the power) = 2.35 × 10-8m

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 70PE: Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b)...

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