As part of a class project you are given 0.900 g of copper and asked to...
How to do these two
problems
3. -1 points OSColPhys2016 20.1.WA.008 My Notes Consider a copper wire with a diameter of 2.51 mm. (a) What is the drift speed of the electrons in the copper wire when a current of 11.0 A flows through it? Assume that each copper atom contributes one free electron to the metal. The density of copper is 8.92 g/cm3 m/s (b) How does this drift speed compare to the random rms speed of an electron...
Suppose you wish to fabricate a uniform wire out of 1.25 g of copper. If the wire is to have a resistance R = 0.310 Ω, and if all the copper is to be used, find the following. (a) What will be the length of the wire? m (b) What will be the diameter of the wire? mm
Suppose you wish to fabricate a uniform wire out of 1.05 g of copper. If the wire is to have a resistance R = 0.370 Ω, and if all the copper is to be used, find the following. (a) What will be the length of the wire? m (b) What will be the diameter of the wire? mm
6. . Fill in the blanks. Suppose that you wish to fabricate a uniform wire out of 0.950 g of copper. The wire is to have a resistance of R 0.300 , and all of the copper is to be used. (a) What is the length of this wire? Round your answer to three significant figures. Take the resistivity of copper to be 1.70 10-'? , m , and the mass density of copper to be 8.92x 103 kg /...
Suppose you have a 24 m long piece of copper wire with a 2.1 mm diameter and a resistivity of 1.72 × 10-8 Ω⋅m. What is the resistance of the copper wire, in ohms?
Suppose you wish to fabricate a uniform wire from 1.80 g of copper. The wire is to have a resistance of R = 0.320 Ω and all the copper is to be used. (a) What must be the length of this wire? m (b) What must be the diameter of this wire? µm
Suppose you wish to fabricate a uniform wire from 2.50 g of copper. The wire is to have a resistance of R = 0.660 Ω and all the copper is to be used. (a) What must be the length of this wire? m (b) What must be the diameter of this wire? µm
Suppose you wish to fabricate a uniform wire out of 1.35 g of copper. If the wire is to have a resistance R = 0.300 H, and if all the copper is to be used, find the following. What will be the length of the wire? What will be the diameter of the wire?
A certain resistor is made with a 53.2 m length of fine copper wire, 5.26 x 102 mm in diameter, wound onto a cylindrical form and having a fiber insulator separating the coils. Calculate the resistance. (The resistivity of copper is 1.72 x 10-8 Ω-
1. A number 12 copper wire has a diameter of 2.053 mm. Calculate the resistance of a 37.0 m long piece of such wire. (Use 1.72×10-8 Ωm for the resistivity of copper.) Use the formula for resistance remembering that the diameter is specified rather than the radius. 2. For safety, the National Electrical Code limits the allowable amount of current which such a wire may carry. When used in indoor wiring, the limit is 20.0 A for rubber insulated wire...