A wire of unknown composition has a resistance of 35.00 Ω when immersed in water at...
A wire of unknown composition has a resistance of 35.00 Ω when immersed in water at 20.0◦C. When the wire is placed in boiling water, its resistance rises to 47.60 Ω . Calculate the temperature coefficient of resistance.
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A wire of unknown composition has a resistance of 35.00 Ω when
immersed in water at...
A copper wire has a resistance of 0.500 Ω at 20.0°C, and an iron wire has...
A copper wire has a resistance of 0.500 Ω at 20.0°C, and an iron wire has a resistance of 0.520 Ω at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 *10^-3(°C)−1 and for iron it is 5.00 *10^-3(°C)−1.
A copper wire has a resistance of 0.540 Ω at 20.0°C, and an iron wire has...
A copper wire has a resistance of 0.540 Ω at 20.0°C, and an iron wire has a resistance of 0.579 Ω at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 10-3(°C)−1 and for iron it is 5.00 10-3(°C)−1.
A length of aluminum wire has a resistance of 20.0 Ω at 30.0°C. When the wire...
A length of aluminum wire has a resistance of 20.0 Ω at 30.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, the resistance of the wire increases to 36.2 Ω. (a) Neglecting thermal expansion, find the temperature of the oven.
A platinum resistance thermometer has a resistance of 200 Ω when placed in an ice 0◦C...
A platinum resistance thermometer has a resistance of 200 Ω when placed in an ice 0◦C bath and 232.6 Ω when immersed in a crucible containing a melting substance. What is the melting point of the substance? The temperature coefficient of the platinum is 0.00392 (◦C)−1 . The resistor was calibrated at a temperature of 20◦C. Answer in units of ◦C.
A platinum resistance thermometer has a resistance of 200 Ω when placed in an ice 0◦C...
A platinum resistance thermometer has a resistance of 200 Ω when placed in an ice 0◦C bath and 204.7 Ω when immersed in a crucible containing a melting substance. What is the melting point of the substance? The temperature coefficient of the platinum is 0.00392 (◦C)−1 . The resistor was calibrated at a temperature of 20◦C. Answer in units of ◦C.
A metal wire has a resistance of 14.00 Ω at a temperature of 25.0°C. If the...
A metal wire has a resistance of 14.00 Ω at a temperature of 25.0°C. If the same wire has a resistance of 14.55 Ω at 90.0°C, what is the resistance when its temperature is −32.0°C?
A given copper wire has a resistance of 5.05 Ω at 20.0°C while a tungsten wire...
A given copper wire has a resistance of 5.05 Ω at 20.0°C while a tungsten wire of the same diameter has a resistance of 4.69 Ω at 20.0°C. At what temperature will the two wires have the same resistance? Your response differs from the correct answer by more than 10%. Double check your calculations.°C
A coil of wire has a resistance of 38.3 Ω at 23.7 °C and 43.0 Ω...
A coil of wire has a resistance of 38.3 Ω at 23.7 °C and 43.0 Ω at 52.6 °C. What is the temperature coefficient of resistivity?
A coil of wire has a resistance of 37.000 Ω at 23.300 °C and 43.400 Ω...
A coil of wire has a resistance of 37.000 Ω at 23.300 °C and 43.400 Ω at 52.800 °C. What is the temperature coefficient of resistivity? Do not enter units.
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.2...
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.2 Ω at 20.0°C. If its resistance increases to 40.9 Ω at 27.5°C, what is the temperature coefficient of resistivity? (°C)−1
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