An aluminum wire has a length of 27.0 m and a resistance of 4.30 2 at 20.0°C. Assuming a circular cross-section, what is the wire's diameter (in mm)? The resistivity of aluminum at 20.0°C is 2.82 x 10-8 0 · m. mm

The resistivity of a material used to make a round 950W resistor is 53W per unit length.  If the resistor has a radius of 0.16 in, what is it’s length?

51&page=1 What is the resistance (in units of Q) of a wire made of a material with a resistivity of 3.2 x 10-8 Q. m, if its length is 10.7 m and its diameter is 0.50 mm? Select one: O A. 6.02 OR. 0.67 OC.0.44 OD. 3.88 OE. 1.74 Next page 601 AM A O G d ENG 4/15/2021

A copper wire has a resistance of 0.565 N at 20.0°C, and an iron wire has a resistance of 0.597 N at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 x 10-3(°C)-1 and for iron it is 5.00 x 10-3(°C)-1. °C

In a physics project, you need a wire to electrically heat a cryostat. You decide to create one with materials you have lying around. You find a 29.0-g piece of copper. The resistivity of copper is 1.68 x 10-8 Ω.m, and its density is 8.9 g/cm3. You will need to use all of your copper to create a solid cylindrical wire that has a total resistance of 0.75 Ω.Determine how long your wire will be, and what its diameter will be.

A wire of diameter 0.550 mm and length 45.0 m has a measured resistance of 2.80 Ω. What is the resistivity of the wire?

How long is a tungsten wire if it has a diameter of 0.179 x 10-3m and a resistance of 2.63 k2? The resistivity of tungsten is 5.62 x 10-* 2-m. length of the wire:

A metal wire has a length of 40.0m  and  a diameter of 0.500mm .The entire length of wire has a resistance of 1.4 Ω. Find the resistivity (in Ω · m) of the metal.

An engineering intern is studying the effect of temperature on the resistance of a current carrying wire. She applies a voltage to a aluminum wire at a temperature of 53.0°C and notes that it produces a current of 1.10 A. If she then applies the same voltage to the same wire at -88.0°C, what current should she expect (in A)? The temperature coefficient of resistivity for aluminum is 3.90 x 10-³ (°C)-¹. (Assume that the reference temperature is 20°C.) A