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 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 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 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
Water is boiled at atmospheric pressure by horizontal polished copper heating 5 mm immersed in water....
Water is boiled at atmospheric pressure by horizontal polished copper heating 5 mm immersed in water. If the surface temperature of element of diameter D the heating wire is 350 °C, determine the rate of heat transfer from the wire to the water per unit length of the wire. Pl aim Heating element 100°C Vapor Water at saturation and 1.0 atm pressure is heated by a wire of diameter 0.127 cm. Its temperature is above boiling temperature by 650 °C....
A coil of wire has a resistance of 38.0 Ω at 25° C and 43.7 Ω at 54° C. What is the temperature coefficient of resistivi...
A coil of wire has a resistance of 38.0 Ω at 25° C and 43.7 Ω at 54° C. What is the temperature coefficient of resistivity?
At 45?C, the resistance of a segment of gold wire is 67 ?. When the wire...
At 45?C, the resistance of a segment of gold wire is 67 ?. When the wire is placed in a liquid bath, the resistance increases to 177 ?. The temperature coefficient is 0.0034 (?C)?1 at 20?C. What is the temperature of the bath? Answer in units of ?C.
(1 point) 8. At 20°C, a length of copper wire has a resistance of 5.0 Ω...
(1 point) 8. At 20°C, a length of copper wire has a resistance of 5.0 Ω What is its resistance when the wire is heated to 80°C? Let α-0.004 at 20°C 01.2Ω 07.5 Ω 06.2 Ω 010 Ω
Water is boiled at atmospheric pressure by horizontal polished copper heating 5 mm immersed in water. If the surface temperature of element of diameter D the heating wire is 350 °C, determine the rate of heat transfer from the wire to the water per unit length of the wire. Pl aim Heating element 100°C Vapor Water at saturation and 1.0 atm pressure is heated by a wire of diameter 0.127 cm. Its temperature is above boiling temperature by 650 °C....
(1 point) 8. At 20°C, a length of copper wire has a resistance of 5.0 Ω What is its resistance when the wire is heated to 80°C? Let α-0.004 at 20°C 01.2Ω 07.5 Ω 06.2 Ω 010 Ω
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