What final temperature of a platinum wire (originally at 20.0 0C) is required to increase its resistance from 80.0 Ω to 104 Ω?
What final temperature of a platinum wire (originally at 20.0 0C) is required to increase its...
(a) To what temperature (in °C) must you raise a copper wire, originally at 20.0°C, to triple its resistance, neglecting any changes in dimensions? oC (b) Does this happen in household wiring under ordinary circumstances? O Yes O No
A platinum wire with room-temperature resistance 56.0 Ω is used as a thermistor. If you want to measure the temperature to within 0.4 ∘C in a range around room temperature, how precisely should the wire's resistance be measured?
To what value would you have to raise the temperature of a copper wire (originally at 20 ∘C) to increase its resistance by 17 % ?
(20) A platinum temperature sensor operates over a broad temperature. Its resistance is related to the temperature by R Ro Gt+ C2t2, where t is temperature in C and R is in Ω. Suppose one platinum temperature sensor has a resistance of 100 Ω at a reference temperature 0 °C; its resistance is measured as 139.4 Ω at a temperature 1. at a temperature of 200 °C. (a) Find the values of coefficients Ro. C and C2
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 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 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 platinum, wire 80 cm long is ito have a resistance of 0.152 what should its diometer be ? the resistance of platinum is 1x10-^7
A 20.0 cm × 20.0 cm square loop of wire lies in the xy-plane with its bottom edge on the x-axis. The resistance of the loop is 0.530 Ω . A magnetic field parallel to the z-axis is given by B = 0.850 y2t, where B is in tesla, y is in meters, and t is in seconds. What is the size of the induced current in the loop at t = 0.460 s ?
2.m. A platinum wire 8o em long is to have a resistance resistance of air. what should its diameter be? The resistance of platinum is 1.14107 ® Calculate the amount of charge that cross section each second and the current density is a current of 5.0A exists in a wire of 0.50cm diameter. passes a