
QUESTION 1 The allowed safe current for a No. 8 copper wire, 0.1285 inch in diameter,...
QUESTION 6 The allowed safe current for a No. 3 copper wire, 0.2294 inch in diameter, is 100 A. How many coulombs of charge pass a cross-section of the wire in 0.5 minutes? Assume the electron concentration in copper wire is about 2 x 102④ electrons/in3, the average electron velocity is about 2.5 inches/s, and the charge per electron is 1.6x 1019 C. (Enter your answer as a number with the coulombs units.)
The figure shows wire section 1 of diameter D,-5.50R and wire section 2 of diameter D2-3.00R, connected by a tapered section. The wire is copper and carries a current. Assume that the current is uniformly distributed across any cross-sectional area through the wire's width. The electric potential change Valong the length L-1.50 m shown in section 2 is 13.0 μν. The nurmber of charge carriers per unit volume is 820x 1028 m3. What is the drift speed of the conduction...
1 mA flows down a 1 mm diameter copper wire. How many billions of electrons pass through a cross section of the wire each μ s (microsecond)?
A 4.00 A current runs through a 12-gauge copper wire (diameter 2.05 mm) and through a light bulb. Copper has 8.5×1028 free electrons per cubic meter. a)How many electrons pass through the light bulb each second? b)What is the current density in the wire? c)At what speed does a typical electron pass by any given point in the wire?
A 5.00-Amp current runs through a 12 gauge - copper wire(diameter 2.05mm) and through a light bulb. Copper has 8.5*10^28 free electrons per cubic meter. A. How many electrons pass through the light bulb each second? B. What is the current density in the wire? C. At what speed does a typical electron pass by any given point in the wire? D. If you were to use wire of twice the diameter, which of the above answers would change? Would...
The Blue line is the key answer.
A 2.5-mm diameter copper wire carries a 33-A current uniform across its cross-section. Determine the magnetic field at the surface of the wire inside the wire. 0.50 mm below the surface.
The charge of an electron is -1.6 x 10^-19C. The formula for current is : Current = Charge/time or I = Q/t 1. If 8000 C of charge pass through a section of wire in 2 minutes, what would the current be? 2. A current of 55 Amperes through a wire over 5 seconds will have how much charge pass through it? how many electrons made up that charge?
1- A 5.6 A current runs through copper wire of diameter 2.06 mm. Copper has 8.5 × 1028 free electrons per cubic meter. At what speed does a typical electron pass by any given point in the wire? (Give your answer in scientific notation using m/s as unit) 2-Current passes through a solution of sodium chloride. In 0.8 s, 2.51 × 1016 Na+ ions arrive at the negative electrode and 3.95 × 1016 Cl- ions arrive at the positive electrode....
Consider a copper wire with circular cross section with radius 0.5 mm, where the conduction electrons in the wire have drift velocity 1 mm/s. Copper has a density of 8960 kg/m3, and copper atoms have a mass of 63.5 amu (where 1 amu = 1.67 x 10−27 kg). (a) How many copper atoms are in one cubic meter of copper wire? (b) Assume each copper atom provides one conduction electron (that is, for each copper atom, one electron is able...
A 2.9 mm -diameter copper wire carries a 40 A current (uniform across its cross section). a)Determine the magnetic field at the surface of the wire. b)Determine the magnetic field inside the wire, 0.50 mm below the surface. c)Determine the magnetic field outside the wire 2.5 mm from the surface.