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.
At 20°C, a length of copper wire has a resistance of 5.0Ω. What is its resistance...
(1 point) 8. At 20°C, a length of copper wire has a resistance of 5.0 Ω What is its resistance when the wire is heated to 80°C? Let α-0.004 at 20°C 01.2Ω 07.5 Ω 06.2 Ω 010 Ω
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.
copper wire length of 250m nd radius of 1mm 20 degree c 1.70x10^-8 Resistance of wire?
4. (SI units) What is the resistance R of a length of copper wire whose length-20 m and whose diameter 0.40 mm, check table 4.3?
A copper wire of length L and cross-sectional area A has a resistance of R0. What is the resistance of another copper wire with length 6L and cross-sectional area 2A. Give your answer as a multiple of R0. A 18.00 R0 B 0.33 R0 C 6.00 R0 D 3.00 R0 E 1.50 R0
The Resistance vs. Length graph of a copper wire is given below.
Determine the resistivity of the wire. Compare to the literature
values given.
The Resistance of an Copper Wire as a Function of Length 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 y = 0.0213x + 0.0035 R2 = 0.999 0 0 0.05 0.1 0.15 0.2 0.25 0.3 Length of Wire (m) Approximate Material Copper Aluminum Brass AttractedResistivity | (μΩ.cm) 1.8 0.1 4.9 + 0.1 7.0...
The question of electricity needs half an hour
Q3||| Some copper wire has a resistance of 200 Ohm at 20°C. A current is passed through the wire and the temperature rises to 90°C. Determine the resistance of the wire at 90°C, assuming that the temperature coefficient of resistance .is 0.004/-C at 0.C
A piece of copper wire has a cross section of 4.0 mm2 and a length of (o What is the electric resistance of the wire at 20 °C? (b) What is the poten- fterence across the wire when it carries a current of 10 A?
What length of copper wire .6 mm in diameter has a resistance of 1 Ohm?
One copper wire has a cross sectional area of A and resistance R and length L. A second copper wire has a length L and cross-sectional area 2A. What is the resistance of the second wire in terms of R? R/2 R 2R 4R Some other value