A 2-meter extension cord is made out of copper wires with a 6 mm diameter. How thick should the wires in a 8-meter extension cord be if it is going to have the same resistance?

Q: If 1.8 miles of 24-gauge copper wire has a resistance of 0.18 kΩ and the resistivity of copper is…

A:

Q: As discussed in the chapter, a thermistor is a device whose resistance varies with temperature. At…

A: V=Voltage=1.2 VR=Resistance=10  kΩ

Q: Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a…

A: Resistance for a wire can be found from R=ρLA where ρ is the resistivity of material, L is length…

Q: Two platinum wires (E & F) are found in a closet. Wire E has a resistance of RE. Wire F is 3 times…

A: The resistance of the wire E is .Wire F is 3 times shorter than wire E.The cross-sectional area of…

Q: A 60 W lightbulb has a resistance of 240 Ω. At the operating temperature of the tungsten filament,…

A:

Q: Problem 7: An extension cord has a resistivity of p = 7.5 × 10-8 2-m. The cord is made from copper…

A:

Q: A metal wire has a resistance of 10.0 ohms at a temperature of 20.0°C. If the same wire has a…

A:

Q: As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with…

A: total mass of copper= 0.9 g

Q: Two conductors are made of the same material and have the same length. Conductor A is a solid wire…

A: Step 1:Step 2:Step 3:Step 4:

Q: If the resistivity of a particular wire is 75.56x10-8 Ω⋅m, the wire is 48.16mm in length, and the…

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Q: An aluminum wire with a circular cross-section has a mass of 1.45 g and a resistance of 0.630 Ω. At…

A: Resistance of wire of area of cross section A and length l is given as R= ρl/A.

Q: As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with…

A: Mass of copper (m) = 0.9 g Density of copper (D) = 8920 kgm3Resistivity of copper (ρ) = 1.72×10-8…

Q: A wire is made out of aluminum with a cross-sectional area of 5.75×10−4 m2 and a length of 40 km.…

A: The resistance of the aluminium wire is

Q: An iron wire has a diameter 3.65 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

A: Formula of resistance is as follows: R=ρLA…

Q: Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a…

A: Resistance of a wire in terms of its resistivity is given as R=ρLAρ is resistivity of the wireL is…

Q: A common flashlight bulb is rated at 0.25 A and 2.5 V (the values of the current and voltage under…

A:

Q: Wire 1 has a resistance of 0.3 ohms. Wire 2 is made of the same material as wire but is three times…

A: Given information:Resistance of the wire 1 = 0.3 ohmLength of wire 1 be “l”The diameter of wire 1 be…

Q: volume of metal a new wire is made that is three times longer than t original wire. What is the…

A: R= 21 Ω let the initial length and area of cross-section of wire be=> l and A let new wire's…

Q: What is the resistance (in Ohms) of a wire made of a material with a resistivity of 4.6× 10-8Ω⋅ m if…

A:

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.