6) In recent class lectures, we discussed the temperature dependence of the electrical resistivity,p(T) for the three main classes of materials that conduct an electrical current; conductors,semiconductors, and superconductors. In the graph below, draw in by hand examples of thetemperature dependence of the electrical resistivity, pT), for each material type. Give at least oneexample of each material type.plT)++>T(K)100200300

Conductors are those materials that have a positive temperature coefficient. Thus, In conductors,…

Answered: 6) In recent class lectures, we…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Resistors - Resistivity and Temperature You are planning a circuit where you need a resistor that can work within a range of temperatures. This resistor is made out of gold (see the table in your textbook for information about gold). This resistor will be cylindrical with a radius of 4.59 µm and a Length L = 1.51 cm. You are going to test the resistor by taking it outside, which currently has a temperature of T = 11.00 degrees Celsius. What is the resistance you predict for this resistor when you measure its value outside based on the measurements, materials and temperature? Make sure to put your answer in using units of Ohms. Your Answer: Answer
The answer may be one or all the options. How many of these are the units for Heat Current H?
1. For the following questions, you do not need to understand the physics. Just focus on working with the equations: To enter subscripts, press the first right-facing arrow by the superscript button in the menu of the popup. (a) Two resistors R₁ and R₂ in an electric circuit are connected in parallel. The effective resistance of the circuit is given by: (Simplify as much as possible and express the answer as a fraction.) 1 1 1 + R R₁ R₂ Solve for R in terms of R₁ and R₂: R= = (b) The volume of a sphere of radius R is V= much as possible. R = ✓ 4 πR³ 3 Solve for R in terms of and V. Simplify as
The electron drift speed is 2.2x10-4 m/s in a metal with a mean free time between collisions of 5.6x10-14 s. Part A What is the electric field strength? Express your answer to two significant figures and include the appropriate units. E- || 3 Value ΜΑ Submit Request Answer Units ?
How many moles of electron flow through a lamp that draws a current of 4.5 A for an hour? choose the correct answer. A. 0.168 B. 0.336 C. 1.01 D. 0.450
II "wire table" states that 12-gauge copper wire at 20°C has a diameter of 2.053 mm, a cross-sectional area of 3.309 mm2, and a resistance per length of 5.211 ohms per kilometer. Calculate the resistivity of the copper in this wire at 20°C three significant figures.Recall that mm2 = (10-3 m)2 = 10-6 m2 and that km = 103 m. ge %3D %3D ogle rome 1.70 X 10-8 ohm-m 1.72 x 10-8 om-m Mw Horizo... 2.00 x 10-8 ohm-m O 2.02 x 10-8 ohm-m Microsoft Click Save and Submit to save and submit. Click Save All Answers to save all answers. Teams Save All Answers Save and P Type here to search
A cylindrical, non-ohmic, uniform conductor is placed in a uniform electric field that points from bottom to top along the axis of the conductor, which is aligned with the z-axis. Which of the following statements is correct (select all that apply)? O The current density is proportional to r (the radial distance from the axis) The current density is proportional to the cube of the conductor's radius O The current density is proportional to the conductivity O The current density is inversely proportional to the cross-sectional area of the conductor
A 400-m long, 0.15 mm radius copper wire is coated with a thin insulating material. An engineer decides to use it for designing a temperature sensor for the range of -10°C to 20°C. A 1.5-V battery is used to bias the sensor. • Determine the resistance of the sensor and corresponding current at the two extremes of the sensor. ● • Determine the maximum power that the sensor will dissipate. Assume that the conductivity of copper is 5.8.107 S/m at 20°C and its temperature coefficient is 0.0039 Q/(°C).
1.0x1016 electrons flow through a cross section of silver wire in 300 μs with a drift speed of 7.2x10-4 m/s. Part A What is the diameter of the wire? Express your answer to two significant figures and include the appropriate units. D= Submit ΜΑ Value Request Answer Units ?
Which of the following quantities do not have direct-proportional relationship with the heat current by conduction? length of the conductor O none of the above cross-sectional area of the conductor O temperature difference between hot and cold region
A compact fluorescent bulb is 17.0 % efficient. a. How much energy input would be required for the bulb to produce 252 J of light energy? b. What type of energy is the waste output? c. How much energy (in Joules) would be wasted? tv MacBook Pro * 7 8 9

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