1. Wires A and B are made for the same material and have the same length. However, the diameter of wire A is thrice the diameter of wire B. wire a has a resistance of 12.0 ohms. what is the resistance of wire B?

Q: The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at…

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Q: 2. An aluminum (p=2.7x10-2m) wire has a cross-sectional area of 5.1x107 m?. A. If the wire is…

A: (A) Let A be the cross-sectional area of the aluminium wire. Write the expression for the circular…

Q: A thermometer made of Platinum has a resistance of 502 at 20 C what is the measured temperature (in…

A: Given:- R1 = 50Ω   , t1 = 20oC  R2 =79.2Ω  , t2 = ? temperature coefficient (α) = 3.92 *10-3 C-1

Q: The terminals of a 0.70 V watch battery are connected by a 120-m-long gold wire with a diameter of…

A: This problem can be solved using ohm's law and resistance of metals formula. Given data , Voltage (…

Q: 7. Calculate the resistance of a 30.0 meter silver wire with a radius of .03 m. Hint: the wire is a…

A: This question can easily be solved by applying a basic concepts of resistance of the wire and…

Q: A 100-m-long copper wire of radius 0.24 mmmm and mass 160 g is connected across a 1.5-V battery. The…

A: Given: length, l=100 m radius, r=0.24 mm=0.24×10-3m voltage, V=1.5 V resistivity, ρ=1.7×10-8Ω⋅m

Q: a. Of what material is a wire made, if it is 10 m long with a diameter of 0.25 mm and has a…

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Q: 3. The resistance of a copper wire with circular cross section of radius a and length L is R. If we…

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Q: copper ros is 3 m long and 4 mm in diameter. Compute its resistance if the resistivity of the…

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Q: 3. A 10.0 m long RG-6 coaxial cable has an inner core of copper with a diameter of 7.112 mm. a.…

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Q: A wire with resistivity 1.8 x 10-7 Ω m has a resistance of 0.45 Ω and a length of 2.0 m. What is the…

A: Given data: The given resistivity of wire is = 1.8×10-7 ohm-m The value of resistance is R = 0.45…

Q: A thermometer made of Platinum has a resistance of 50 at 20 C, what is the measured temperature (in…

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Q: Current and Resistance Problem 9:   An extension cord that has a length of 9.65m is made from wire…

A: Please see the attached image for the solution.  If there are queries or if the image is not…

Q: Two wires of the same material and with the same length have different diameters. Wire A has twice…

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Q: - C are 2.0 x 10-6 n·m and 1.00 wires are joined as shown in the F

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Q: . A certain lightbulb has a tungsten filament with a resistance of 19.0 N when at 20.0°C and 140 N…

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Q: Calculate the resistance of a 1.2 meter copper wire with a cross-sectional area of 1.0 x 10m?.

A: as per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

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.