Nanotechnology How much more or less resistance does a cubic micrometer of copper have versus a...
In order to double its resistance, by how much would you have to increase the temperature of a piece of the following? (a) copper (The temperature coefficient of resistance for copper is 3.9 x 10-3 (oc)-1.) oC (b) Nichrome (The temperature coefficient of resistance for Nichrome is 4.0 x 10-4 (°c)-1.) OC
How much heat does it take to melt 43.77 g of copper if the copper is already at its melting point? The heat of fusion of copper is 49cal/g
Problem 3 Copper has 8.5-1028 free electrons per cubic meter. A 71.0 cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 A of current. (a) How much time does it take for an electron to travel the length of the wire? (b) Repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) More generally, how does changing the diameter of the wire that carries a...
Cars The Honda Accord EX has 1.9 cubic feet less cargo space than a Mazda 6s. Together the cars have 31.3 cubic feet of cargo space. How much cargo space does each car have?
How much more or less) output will the average American have next year if the $18 trillion GDP grows (or contracts) by: Assume a population of 320 million. If the economy contracts, be sure to put a (-) in front of your answer. a. 1.5 percent? b.-0.5 percent? c. -2 percent?
(E4B.3(a) By how much does the chemical potential of copper change when the pressure exerted on a sample is increased from 100 kPa to 10 MPa? Take the mass density of copper to be 8960 kg m ?
Copper has 8.5 times 10^28 free electrons per cubic meter A 73.0 cm length of 12-gauge copper wire, that is 2.05 urni in diameter, carries 4.85 A of current. How much time does it take for an electron to travel the length of the wire? Repeat for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current.
How can the resistance be determined from a Voltage versus Current plot? If you had to guess at what the resistivity of a 50% nickel & 50% Silver alloy was, what would number would you come up with? rho = _____? (best guess) see page 1 for data. (write your answer on page 2 as well for reference during the lab) What are the units of the thermal coefficient of resistance (alpha)? How hot would Copper have to get so...
How much does a 0.40m long copper rod with a 6.7mm diameter stretch when one end is fixed and the other is pulled with a 1.1kN force?
How much does a 0.36 m long copper rod with a 7.7 mm diameter stretch when one end is fixed and the other is pulled with a 1.5 kN force