(a) Calculate the resistance of aluminum wire with a cross sectional area of 10 mm2 and length of 2 meters, the resistivity of Titanium is 0.027 Ohm*mm2/m. (b) If the resistivity of copper is much lower, 0.0171 Ohm*mm?/m, how long would a wire of copper, with the same 10 mm2 cross sectional area have to be to have the same resistance as the 2 meter long aluminum wire?
(a) Calculate the resistance of aluminum wire with a cross sectional area of 10 mm2 and length of 2 meters, the resistivity of Titanium is 0.027 Ohm*mm2/m. (b) If the resistivity of copper is much lower, 0.0171 Ohm*mm?/m, how long would a wire of copper, with the same 10 mm2 cross sectional area have to be to have the same resistance as the 2 meter long aluminum wire?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:1) At tesla Model III electric car runs its electric motors on a 400 Volt circuit and each
individual motor's maximum current consumption is 750 Amps. If the maximum mechanical
output of each motor is 270 kWatt (270,000 watts) what is the efficiency of the motor?
2) Two particles both have a positive charge of 3 coulombs each and present an electrostatic
force between them of 100,000,000,000 Newtons (100 x 10° Newtons), (a) what is the
distance between them in meters? (b) are they repealing or attracting each other?
3) (a) Calculate the resistance of aluminum wire with a cross sectional area of 10 mm2 and
length of 2 meters, the resistivity of Titanium is 0.027 Ohm*mm?/m. (b) If the resistivity of
copper is much lower, 0.0171 Ohm*mm2/m, how long would a wire of copper, with the
same 10 mm? cross sectional area have to be to have the same resistance as the 2 meter
long aluminum wire?
4) Complete the following items:
An electronic device measures
Reciprocating/Rotational movement is ideal for
chemical reaction on a battery will produce
current devices while a
current
The higher the voltage on a power supply, the higher
to induce the flow
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