Answered: 1.4 The resistance of a wire is given… | bartleby

Related questions

Question

1.4 The resistance of a wire is given by
R = R₁(1+at+ẞt²)
where t is the temperature in degrees Celsius measured on the ideal gas
scale and so R., is the resistance at the ice point. The constants & and ẞ
are 3.8 × 10-K and -3.0 x 10-K, respectively. Calculate the tempera-
ture on the resistance scale at a temperature of 70°C on the ideal gas
scale.

Expert Solution

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

Figure a shows a rod of resistive material. The resistance per unit length of the rod increases in the positive direction of the X axis. At any position x along the rod, the resistance dR of a narrow- differential-section of width dx is given by dR = 5.00xdx, where dR is in ohms and is in meters. Figure b shows such a narrow section. You are to slice off a length of the rod between X = O and some position = L and then connect that length to a battery with potential difference V = 5.0V (Fig. c). You want the current in the length to transfer energy to thermal energy at the rate of 6.2 W. At what position x = L in meters should you cut the rod? Keep 2 decimla points in your aanswer. dx 1.0 -x (m)
Nichrome is an alloy used for making electric heater wires. A nichrome wire of diameter 0.50 mm is to be used for this purpose. In operating conditions, the temperature of the wire is 968 °C, and the power of the electric heater is 1.5 kW. The potential difference applied to the heater wire is 110 volts. What should be the resistance (in ohms) of the wire at room temperature (20°C)? Electrical resistivity of nichrome at 20°C= 1.0 x 10-6 Qm Temperature coefficient of resistivity = 0.4 x 10-3 C-1
An iron wire has a resistance of 2.50 N at 33.0°C. Determine its resistance (in 2) at 433°C. The temperature coefficient of resistivity for iron wire is 5.00 × 10-3 (°C)-1. (Assume that the temperature coefficient of resistivity was measured using the reference temperature 20°C.)
The resistivity of blood is related to its hematocrit, the volume fraction of red blood cells in the blood. A commonly used equation relating the hematocrit h the blood resistivity ρ (in Ω⋅m) is ρ=1.32/(1−h)−0.79. In one experiment, blood filled a graduated cylinder with an inner diameter of 0.90 cm. The resistance of the blood between the 1.0 cm and 2.0 cm marks of the cylinder was measured to be 210 Ω. What was the hematocrit for this blood?
If 3.50 x 10-3 kg of gold is deposited on the negative electrode of ions carry one elementary unit of positive charge. mA electrolytic cell in a period of 2.99 h, what is the current in the cell during that period? Assume the gold
A length of aluminum wire has a resistance of 28.0 Ω at 32.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, the resistance of the wire increases to 43.1 Ω. (a) Neglecting thermal expansion, find the temperature of the oven. °C(b) Qualitatively, how would thermal expansion be expected to affect the answer?