(1 point) 8. At 20°C, a length of copper wire has a resistance of 5.0 Ω...
At 20°C, a length of copper wire has a resistance of 5.0Ω. What is its resistance when the wire is heated to 80°C? Let a = 0.004 at 20°C.
6 At20 C, alength ofcopper wire has a resistance of 5 0 Ω What is its resistance when the wire ts heated to 80°C?It α-0004 at 200C. apoie) 01,2 Ω 07.5 Ω 0 622 10Ω 7. During a random lightning strike from a cloud to the ground, a current of 25,000 A lasts for 40 ( poin) ps. How much charge is transferred from the cloud to earth during that strike? 020 C 1.6C 0 10 C 2.5 C
Copper wire has a resistivity ρ = 1.7 × 10-8 Ω⋅m when at 20°C and it has a temperature coefficient α = 3.9 × 10-3 K-1. A solid cylinder of copper of length L = 85 cm and diameter D = 2.5 mm has one end held at T1 = 7°C and the other end is held at T2 = 210°C. The temperature increases linearly between the two ends of the cylinder. Given that T= T1 + ( x/L )...
A copper wire has a resistance of 0.500 Ω at 20.0°C, and an iron wire has a resistance of 0.520 Ω at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 *10^-3(°C)−1 and for iron it is 5.00 *10^-3(°C)−1.
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.
Course Home KHome Work 3 Problem 18.16 Constants A certain copper wire has a resistance of 11.0 Ω At some point along its length the wire was cut so that the resistance of one piece is 5.0 times the resistance of the other
copper wire length of 250m nd radius of 1mm 20 degree c 1.70x10^-8 Resistance of wire?
Please answer all parts! Thanks. I. It is desired to construct a solenoid that will have a resistance of 6.00 Ω at 20°C and produce a magnetic field of 4.00 × 102 T at its center when it cames a current of 3.40 A. The solenoid is to be constructed from copper wire having a diameter of 0.500 mm. If the radius of the solenoid is to be 1.00 cm, determine the following. (The resistivity of copper at 20°C is...
A given copper wire has a resistance of 5.05 Ω at 20.0°C while a tungsten wire of the same diameter has a resistance of 4.69 Ω at 20.0°C. At what temperature will the two wires have the same resistance? Your response differs from the correct answer by more than 10%. Double check your calculations.°C
A length of AWG #12 copper wire has a resistance of 0.020 Ohms at 20 °C. Calculate the temperature for which the resistance is 0.023 Ohms.