
How long is a wire made from 100 cm3 of copper if its resistance is 4.0...
A 100-m -long copper wire of radius 0.19 mm and mass 100 g is connected across a 1.5-V battery. The resistivity of copper is 1.7×10−8Ω⋅m. 1)Determine the resistance of the wire. Express your answer with the appropriate units. 2) Determine the current through the wire. Express your answer with the appropriate units. 3) Determine the power delivered by the battery. Express your answer with the appropriate units.
A long copper wire is used to transmit a current from one side of the campus to another as part of a scientific experiment to measure the speed of sound. The wire has a cross sectional area of 2.5*10^-6 m^2 and a total resistance of 7.2 ohms. A voltage of 25 V is applied across the length of the wire. The resistivity of copper is 1.68*10^-8 ohms m. How long is the wire? What is the current flowing through the...
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?
Imagine a copper wire 10 km long that needs to supply a city with 10 Mwatts of power--say from a waterfall. If the city ran on DC power, with voltages of 100 V, how much current would run through that wire? If you were willing to lose 1% of your power as heat in the wire, how thick would such a wire have to be? The resistivity of copper is 1.7 x 10-8 ohm-m.
A solenoid 10 cm in diameter and 630 cm long is made from copper wire of diameter 0.050 cm, with very thin insulation. The wire is wound onto a cardboard tube to make a solenoid. (a) Determine the resistance in the wire. You may take the resistivity of copper to be 1.68 times 10^-8 Ohm m. (b) The number of turns in the wire is ten. Find the current necessary to produce a magnetic field of strength 1.5T. (c) How...
The resistance of a 50 m long copper wire is 0.267 Ω at 20 °C. Calculate the diameter of the wire. The resistivity of copper is 1.68 x 10-8 Ωm.
A certain resistor is made with a 52.2 m length of fine copper wire, 4.70 × 10 2 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-m.) 465.95 Ohms Ίκ
A long copper wire has a resistance of 33 Ohms. A second copper wire is a factor of 5 times shorter than the first wire. (It is the same area, however.) If the second wire is connected to a 24 volt battery, what is the current in the wire in amps?
What is the resistance of a 4.9-m length of copper wire 1.9 mm in diameter? The resistivity of copper is 1.68×10−8Ω⋅m.
Problem 18.13 Part A What is the resistance of a 4.4-m length of copper wire 1.7 mm in diameter? The resistivity of copper is 1.68×10−8Ω⋅m. ------------------------------------------------------------------------------------------------------------ Problem 18.22 Part A Determine at what temperature aluminum will have the same resistivity as tungsten does at 24 ∘ C . please help thank you