When at 25 degrees Celsius, a certain resistor has a resistance of 220 Ohms. When connected to a 11.0 Volt power supply, the current in the circuit is measured to be  48.9 mA. What is the temperature of the resistor if its temperature coefficient of resistivity is 4.00 x 10^-3 per degree Celsius?

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Q: A coil of wire has a resistance of 55.8Ω at 26 °C and 54.1Ω at 61 °C. What is the temperature…

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Q: A copper wire has a resistance of 15 Q at a temperature of 140C. After a current passes through the…

A: We have givenR1=15 ohmT1=14°CAfter passing currentR2=22.5 ohm

Q: A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 38.8 Q at 20.0°C. If…

A: Find the temperature coefficient of resistivity. R=R01+αT-T0RR0=1+αT-T0RR0-1=αT-T0α=RR0-1T-T0

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Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 x 10-8…

A: The resistance Rof a wire of length l, cross secetion area A, and resistivity ρ,  is given by,R=ρlA

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A: Given value--- length = 290 m. diameter = 0.48 mm. initial temperature = 20 degree C.  resistivity…

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A: Information Given:- Length of the wire is l=105 cm Initial resistance of the wire is R0=20.5 Ω…

Q: In a discharge tube, the number of protons drifting across any cross-section is 1-0 x 1018 per…

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Q: A toaster has a Nichrome (a-4.5x104 C) heating element that has a resistance of Ro= 80 N at a…

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Q: 1.5. The resistance of a platinum wire is found to be 11.000 N at the ice point, 15.247 2 at the…

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Q: Given the temperature coefficient of resistivity of a certain wire to be 3.1 x10−3 (°C)−1.By what…

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Q: An aluminum wire has resistance of 80 ohms at 30 degree Celsius. And determine its resistance when…

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Q: The copper windings of a motor have a resistance of 46 Ω at 20oC when the motor is idle. After the…

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Q: If the current passing through a resistor is reduced to 0.3 of its value due to an increase in the…

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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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Q: H.W. 1.1: it is required to maintain a loading of 5 kW in a heating unit. At an initial temperature…

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Q: A spool of copper wire 200 m long and with a diameter of 0.320 mm is at 20.0°C. For copper, the…

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Q: If 1.19 miles of 24-gauge copper wire has a resistance of 1.28 kΩ and the resistivity of copper is…

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Q: If a 60 W electric heater has a current of 4 A at 20°C, what will be the resistance if its…

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Q: An aluminum wire has a resistance of 5.50 Q at 10.0°C. Determine its resistance (in Q) at 410°C. The…

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Q: A conductor has a diameter of 2.59 mm. How many meters of this material are needed to yield a…

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Q: A heating element is a (nichrome) wire with cross-sectional area of 2 x 10^-7 m^2 and is 1.3 m long.…

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Q: A certain copper wire has a resistance of 25 ohms at 10°C. Take the temperature coefficient at 10°C…

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Q: At 20°C, the carbon resistor in an electric circuit connected to a 5.7-V battery has a resistance of…

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Q: A lab technician is studying the effect of temperature on the resistance of a current carrying wire.…

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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.