e letter that corresponds to the correct an 1. The resistance of a resistor: (a) Do...
Which of the following is the correct statement regarding resistance? a. the resistance of a wire is inversely proportional to the resistivity of the wire b. the resistance of a wire is directly proportional to the length of the wire c. the resistance of a wire is directly proportional to the area of the wire d. all of the above statements are correct e. none of the above statements are correct Consider two copper wires. One wire has twice the...
14) Which of the following is NOT a typical electrical component? A) Resistor B) Capacitor C) Megatron Inductor E) Transformer D) 23) Convert 6.8 x 10-5 W to the closest standard metric prefix. A) 68 °W B) 0.68 uW C) 680 uW D) 6.8 uw 24) Convert 3.95 x 10-4 A to the closest standard metric prefix. A) 3.95 mA 39.5 mA 0.395 mA D 395 mA Convert the following: 25) 2 x 10-3 Amp = A) 2 microamps 2...
1. All students: (a) By combining kinetic theory with classical mechanics, Drude was able to derive a sensible equation for the electrical conductivity of metals. In the case of the thermal conductivity however, Drude's theory fails. Explain why (in bullet-point form). (b) The Fermi energy of copper is ~8 eV. What fraction of electrons are above the Fermi-level at room temperature? (c) Write down a general expression for the electron density in terms of the density of states and the...
If u could please answer parts 1-15. Polyethylene structure 1. Based on the structure shown above, polyethylene has a structure A. linear B. branched C cross linked D. 3D network 2. Based on the structure shown above, polyethylene is a polymer A thermoplastic Bermoset 3. Based on the structure shown above, polyethylene is talement below les transition and temperature A soll, ductile (1) strong stift B. strong, if(t) soft, dustile c. trong ductile), brindle 4. What will be the effect...
1.The minimum wavelength and the minimum wave length for visible light is about 0.4 um and 0.7 um, respectively . Assume that the velocity of light is a constant of 3.0x10^8 m/s and Planck's constant is 4.13x10^-15 eV-s. What kind of material will appear colored? (a)The material with band gap of 1.0eV (b)The material with band gap of 2.0eV (c)The material with band gap of 3.2eV (d)The material with band gap of 3.5eV 2.Which kind of material is most likely...
1. At the bottom of a water reservoir the absolute pressure is 180 ft. The reservoir is located at sea level where the atmospheric pressure is 33.9 ft. A water intake line is located half way down the reservoir. At what depth in the reservoir is the intake line? 2. It has been shown by experiment that the resistance to flow in a pipe is: (circle all correct answers to receive any credit) A. Dependent on the pressure under which...
A rectangular copper block is 30 cm in height (along z). In response to a wave incident upon the block from above, a current is induced in the block in the positive x direction. Determine the ratio of the ac resistance of the block to its dc resistance at 10 MHz. The relevant properties of copper are given in Appendix B. A30 25 30cm 20 15 10 5 30 30 20 20 10 10 Material Conductivity, σ (S/m) |...
(1) (b) concrete, (c) polyethylene, or (d) water? 1.14 Copper is generally considered easy to weld because of its high thermal conductivity: (a) true or (b) false? (1) 1,15 Which of the following properties or characteristics do not apply to metals (two correct answers): (a) good thermal conductivity, (b) high strength, (c) high electrical resistivity, (d) high stiffness, and (e) ionic bonding? 1.16 An alloy is a metal composed of two or more elements, at least one of which is...
A rectangular copper block is 30 cm in height (along z). In response to a wave incident upon the block from above, a current is induced in the block in the positive x direction. Determine the ratio of the ac resistance of the block to its dc resistance at 10 MHz. The relevant properties of copper are given in Appendix B. A30 25 30cm 20 15 10 5 30 30 20 20 10 10 Material Conductivity, σ (S/m) | Material...
Please write the python functions Problem: Electric wire (Figure is a cylindrical conductor covered by an insulating material. Figure 2 shows the structure ofa single conductor. The resistance of a piece ofwire is given by the formula: A d where ρ is the resistivity of the conductor, and I (in meter), A, and d (in meter) are the length, cross-sectional area, and diameter of the wire. The wire diameter, d, is commonly specified by the American Wire Gauge (AWG). Which...