5. A conductive block in the shape of a rectangular solid has a cross-sectional area of 13 cm² across its width, and a length of 16 cm. The block has a resistance of 200 2. The block is maintained along its length. contains 7e+18 conduction electrons (be careful, this is not "n", although it will help you find "n"). Connecting a battery to the two ends of the block, a potential difference of AV= 26 V (A)What is the current (in A) in the block? O0.113 00.274 0.130 00.0507 O0.195 00.424 ✔ (B) If the current density is uniform, what is its magnitude (in A/m²? 100. 0211 087.0 O326 O39.0 150. ✔ (C)What is the drift speed (in m/s) of the conduction electrons? O0.0186 0.00724 0.0162 O0.0605 O0.0392 00.0279 (D)What is the magnitude of the electric field (in N/C or V/m) in the block (Consider this E-field to be constant along the length and remember that there is a formula for the relation between V and E for a constant E-field)? 163 063.4 O244 0141 O530. O343✔ (E)What is the Mean Free Time Between Collisions (in sec) of the free electrons in the block? 02.12e-15 02.54e-16 O1.37e-15 09.76e-16 O5.66e-16 O6.51e-16 (F)What is the conductivity (in (nm)-1) of the material? O0.535 01.30 0.615 00.923 02.01 00.240

5. A conductive block in the shape of a rectangular solid has a cross-sectional area of 13 cm² across its width, and a length of 16 cm. The block has a resistance of 200 2. The block is maintained along its length. contains 7e+18 conduction electrons (be careful, this is not "n", although it will help you find "n"). Connecting a battery to the two ends of the block, a potential difference of AV= 26 V (A)What is the current (in A) in the block? O0.113 00.274 0.130 00.0507 O0.195 00.424 ✔ (B) If the current density is uniform, what is its magnitude (in A/m²? 100. 0211 087.0 O326 O39.0 150. ✔ (C)What is the drift speed (in m/s) of the conduction electrons? O0.0186 0.00724 0.0162 O0.0605 O0.0392 00.0279 (D)What is the magnitude of the electric field (in N/C or V/m) in the block (Consider this E-field to be constant along the length and remember that there is a formula for the relation between V and E for a constant E-field)? 163 063.4 O244 0141 O530. O343✔ (E)What is the Mean Free Time Between Collisions (in sec) of the free electrons in the block? 02.12e-15 02.54e-16 O1.37e-15 09.76e-16 O5.66e-16 O6.51e-16 (F)What is the conductivity (in (nm)-1) of the material? O0.535 01.30 0.615 00.923 02.01 00.240

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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5. A conductive block in the shape of a rectangular solid has a cross-sectional area of 13 cm² across its width, and a length of 16 cm. The block has a resistance of 200 . The block contains 7e+18 conduction electrons (be careful, this is not "n", although it will help you find "n"). Connecting a battery to the two ends of the block, a potential difference of AV= 26 V is maintained along its length. (A)What is the current (in A) in the block? 00.113 00.274 00.130 00.0507 00.195 00.424 (B)If the current density is uniform, what is its magnitude (in A/m²? O100. 0211 087.0 0326 039.0 0150. (C)What is the drift speed (in m/s) of the conduction electrons? 00.0186 00.00724 00.0162 00.0605 00.0392 00.0279 (D)What is the magnitude of the electric field (in N/C or V/m) in the block (Consider this E-field to be constant along the length and remember that there is a formula for the relation between V and E for a constant E-field)? 0163 063.4 0244 0141 0530. 0343 (E)What is the Mean Free Time…
13. A very long straight, cylindrical wire lying along the x axis has a diameter of 0.250 mm and is initially at 20.0°C. It is made of a material described by Ohm's law with a resistivity of po = 3.30 x 10-8 Q. m and a temperature coefficient of resistivity of a = 0.00025 °C-1. Using a voltmeter, we measure a voltage of 8.00 V at a point that is 0.750 m to the right of a point that is measured to have zero voltage (see figure below). · Ax = 0.750 m - V= 0 V = 8.00 V a) What is the resistance per unit length of the wire? b) What are the magnitude and direction of the electric field in the section of the wire between the dashed lines? c) What are the magnitude and direction of the current in the wire between the dashed lines? d) What is the rate at which energy is dissipated in the section of the wire between the dashed lines? e) Now assume that the current found in part (c) flows through the entire wire. What is the magnitude and direction of the magnetic field generated by the wire at…
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