A carbon resistor is to be used as a thermometer.On a winter day when the temperature is 4.0 °C,the resistance of the carbon resistor is 217.7.Part AWhat is the temperature on a spring day when the resistance is 215.8 ? (Take the reference temperatureTo to be 4.0 °C.)T =跖ΑΣΦ0?SubmitPrevious Answers Request AnswerC

Answered: A carbon resistor is to be used as a…

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

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Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 25P: A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of...

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A student uses a 100.00-W, 115.00-V radiant heater to heat the student’s dorm room, dining the hours between sunset and sunrise, 6:00 p.m. to 7:00 a m. (a) What current does the heater operate at? (b) How many electrons move through the heater? (c) What is the resistance of the heater? (d) How much heat was added to the dorm room?
A child's electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of 0.0200 inseries with a 1.53-V carbon-zinc dry cell having a 0.100- internal resistance. The load resistance is 10.0 . (a) Draw a circuit diagram of the toy and itsbatteries, (b) What current flows? (c) How much power is supplied to the load? (d) What is the internal resistance of the dry cell if it goes bad, resulting in only 0.500 W being supplied to the load?
Explain why R=R0(1 + a?T) for the temperature variation of the resistance R of an object is not as accurate as P=P0(1 + a?T) which gives the temperature variation of resistivity P.
A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any wires used for connections is negligible, (a) What is the current through the resistor? (b) What is the power dissipated by the resistor? (c) What is the power input from the battery; assuming all the electrical power is dissipated by the resistor? (d) What happens to the energy dissipated by the resistor?
A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 4.0°C, the resistance of the carbon resistor is 217.3 Ω. What is the temperature on a spring day when the resistance is 215.8 Ω? (Take the reference temperature T0 to be 4.0°C.)
ostro Imssb1.mutah.edu.jo/mod/ A thermometer made of Platinum has a resistance of 50 2 at 20 C, what is the measured temperature (in units of C) when its resistance is 77 N. Assume the temperature coefficient of resistivity to be a= 3.92x 10 C
24.1% Resources Lx Give Up? Hint The Iceberg Kid, infamous for imposing a deep freeze on whoever disagrees with him, discovers that in his advanced teenaged years his hands constantly feel chilled. As he is a cool physics student, the Iceberg Kid quickly calculates the resistance of the resistor needed to warm his hands. Given that 177 J of thermal energy is generated by the resistor during 7.69 s of operation while connected to a 12.0 V battery, find the correct value of this resistance (and avoid a cold, cold fate). resistance: Ω
A thermistor is a device whose resistance varies with temperature. At 20∘C∘C a thermistor's resistance is 10.0 kΩkΩ. When connected to a 1.2 VV battery, the current through the thermistor increases by 80 μAμA as the temperature increases to 30∘C. What is the thermistor's resistance at this higher temperature?
A platinum resistance thermometer has a resistance R0 = 50 Ω at atemperature To of 20 °C. The temperature coefficient of resistance for theconductor for Pt (α) is 3.92 x 10-3 (°C)-1. The thermometer is immersed in avessel containing molten tin, at which point the resistance increases to 92.8Ω. What is temperature of the liquid tin?
Q7
An electronic device designed to operate at any temperature in the range from -17.6°C to 57.9°C contains pure carbon resistors. What is the percent difference in resistance over this range? The temperature coefficient of resistivity for carbon is -0.500 x 10-3/°C.
A copper (resistivity = 1.72 EXP-8 Ω.m) conductor with a square cross section, 1.0 mm on a side is 100 m long and is initially 20oC. 1. If the temperature coefficient (a) of copper is 0.00393 per degree Celsius, what is the change in resistance of the copper conductor if the temperature is increased to 100 degrees Celsius? 2. What is the resistance of this conductor?

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