Given the temperature coefficient of resistivity of a certain wire to be 3.1 x10-3 (°C)-1.By what factor is the resistance of this wire changed when its temperature is increased from 20.0°C to 79.48 °C? R Ro

Q: What is the resistance R of a 51.7-m-long aluminum wire that has a diameter of 8.63 mm? The…

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Q: 6. An 18-gauge wire with a diameter of 1.0 mm and length 1.4m carries a constant current of 6.1 A.…

A: Given, Diameter = 1.0 mm Length = 1.4 m Current = 6.1 A Resistivity of copper wire = 1.72×10-8ohm.m…

Q: 1) A resistor has a value of 20 ohms (Ω) when it is at 15 degrees Celsius. If the coefficient of…

A: For question (1),Given,The resistance at  is The coefficient of thermal resistivity is The final…

Q: R= Two identical resistors of Ro=41 92 are connected head-to-tail. 도로 Express the resistance Ro of…

A: Given that two identical resistances Ro=41 are connected in series( head to tail ).

Q: a. What diameter of copper wire [p = 2.65 x 10^-8 ohm.m) should be used so that a 22.0 m length will…

A: Part (a) Given: The resistivity of copper wire is ρ=2.65×10-8 Ω·m. The length of wire is L=22.0 m.…

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Q: certain laboratory experiment requires an aluminum wire of length of 22.0 m and a resistance of 5.00…

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Q: A certain lightbulb has a tungsten filament with a resistance of 22.4 N when at 20.0°C and 143 N…

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Q: A copper wire has a resistance of 0.500 n at 20.0 °C, and an iron wire has a resistance of 0.525 n…

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Q: An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.215 V/m imposed along…

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Q: A resistor is found to have a resistance of 100Sat 20°C and a resistance of 112 at 55° What is the…

A: Electricity.

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

A: Given data: Reference resistance Ro = 50 Ω Reference temperature To = 20 °C Resistance at…

Q: A copper wire of radius a = 0.234 mm has an aluminum jacket of outer radius b=0.318 mm. There is a…

A: Given Data :  Radius of copper wire,a=0.234mm=0.234×10-3m  Radius of aluminum jacket, b = 0.318mm =…

Q: A conductor has a cross-sectional area of 2.3x 10-6 m and the number of free electrons per unit…

A: Drift speed is given by -      Drift speed= current/(n × e ×A) Where, n=number density e=Electric…

Q: Resistivity of silver is less than that of tungsten. If a tungsten wire and a silver wire are having…

A: Introduction: Resistance is directly propositional to the resistivity of the material.resistivity is…

Q: Determine the length e and diameter d of a cylinder of copper in terms of the volume "V" ,…

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Q: Wire C and wire D are made from different materials and have length Lc = Lp = 1.4 m. The resistivity…

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Q: The magnitude J of the current density in a certain wire with a circular cross section of radius…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A certain conductor wire has a resistance of 25 Q at 25°C. If the resistance 6. increased to 96 Q at…

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Q: A conductor of cross-sectional area A length and resistivity o has resistance R. What is the new…

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Q: 8. For a projectile launched with speed vo at initial angle 0, derive general expressions for the…

A: The projectile motion is the motion in which some object which is thrown at an angle follows a…

Q: Resistivity of steel is larger than that of copper. If a copper wire and a steel wire are having the…

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

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Q: A wire is 1.2 m long and 1.1 mm² in cross-sectional area. It carries a current of 5.5 A when a 2.1 V…

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Q: Please answer F G H thank you

A: Length, resistivity and area of cross section are given

Q: 2. a) The resistivity of copper is 1.7241 x 10-8 (-m) at 20°C. What is the conductivity of copper at…

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Q: Wire thickness is typcially measured with the term Gauge (AWG). The smaller the gauge, the thicker…

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Q: that pass per second through a section of wire carrying a A. E. Solve for the resistance of a…

A: Hi. as you have posted multiple questions and have not specified which question needs to be solved,…

Q: A copper wire is (50 m) long, and has a cross-sectional area of (5 mm²). a/ Calculate the resistance…

A: Given: The length of the wire is 50 m. The cross-sectional area of the wire is 5 mm2.

Q: A thermometer made of Platinum has a resistance of 50 2 at 20 C, what is the measured temperature…

A: Given, Resistance (R1)= 50 ohms at 20 degrees Resistance (R2)=78.5 ohms  Temperature coefficient of…

Q: A wire 3.00 m long and 0.450 mm? in cross-sectional area has a resistance of 40.6 2 at 20.0°C. If…

A: We have the expression of Resistance values for conductors at any temperature (T°C):

Q: A silver wire has a length of 33.0 m and a resistance of 2.60 2 at 20.0°C. Assuming a circular…

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Q: The proportionality constant is called resistance and depends on the material used. Typical In the…

A: Conductors: a material which has the lower resistivity is known as conductors.   Note: for best…

Q: A piece of wire of length 31.5 cm and cross-sectional area 227.4 cm² is made into a resistor of…

A: Given: The length of the wire is 31.5 cm. The area of the wire is 227.4 cm2. The resistance of the…

Q: 1.70 mm cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a…

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Q: Two wires have the same resistance and radius. If the wires are made of tungsten and copper with…

A: Given data   The resistance of both the wires is equal to Rt = Rc The radius of both the wires rt =…

Q: Question 7.21 only

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Q: What is the resistance (in units of Q) of a wire made of a material with a resistivity of 3.2 x…

A: Resistivity , ρ = 3.2 x 10-8  Ω m Length , L = 58.9 m Diameter , d = 0.5 mm To find = Resistance of…

Q: A certain wire of radius 1-10 mm is made from an unknown alloy that has a resistivity of 1.25e-07…

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Q: A certain material has a resistance of 5 2 at 20°C. The material is then heated to 800°C, calculate…

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Q: What is the resistance of a 3.4-m length of copper wire 1.8 mm in diameter? The resistivity of…

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Q: Check My Wc Number 14 copper wire has a resistance of o.ooo2525 2/ft. If the total resistance of the…

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Q: Silver at room temperature is found to have a resistivity of 1.59×108 №∙m. If the temperature i…

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Q: A platinum wire with resistance 1.0 N at 20 °C is immersed in liquid nitrogen at -195.9 °C. If the…

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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.