2 pore. Se CP10 17P002 My Notes Ask Your Teache A copper wire has a circular cro

Question

2 pore. Se CP10 17P002 My Notes Ask Your Teache A copper wire has a circular cross section with a radius of 2.60 mm (a) If the wire carries a current of 3.00 A, find the drift speed of the electrons in the wire. (The density of electrons in copper is n 8.46 x 1028 electrons/m) m/s (b) All other things being equal, what happens to the drift speed in wires made of metal having a larger number of conduction electrons per atom than copper? Explain. This anewer has not been graded yet My Notes Ask Your Teache An aluminum wire having a cross-sectional area of 4.90 x 10-6 m2 carries a current of 3.50 A. The density of aluminum is 2.70 g/cm. Assume each aluminum atom supplies one conduction electron per atom. Find the drift speed of the electrons in the wire. mm/s Need Help? ?.htu -2 points SerCP11 17 P020 A rectangular block of copper has sides of length 11 cm, 24 cm, and 36 cm. If the block is connected to a 7.4 V source across two of its opposite faces, find the following My Notes Ask Your Teache (a) What is the maximum current the block can carry? (b) What is the minimum current the block can carry? Need Help? L My Notes Ask Your Teache

Explanation / Answer

I= neVA

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V= i/(neA)

= 3/(8.46*10^28*1.6*10^-19*pi* (2.3*10^-3)^2)

= 1.33*10^-5 m/s

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On increasing conduction electron drift velocity of electron decreases.

V is inversely proportional to n

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According to chegg guidelines we can solve one problem at a time so please post other problems seperately..

Comment in case any doubt..goodluck

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