(a) Assuming a resistivity of 1x1013 N.m, calculate the resistance between the ends of a rubber band that is 20 cm long and 2.5 mm in diameter. Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. N (b) Calculate the resistance between the 'heads' and 'tails' sides of a penny that is 1 mm thick and 2 cm in diameter. Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. N (c) WARNING! Do not try this at home! What is the expected current that each would carry if it were connected across a 104 V power supply? rubber band The correct answer is not zero. A penny Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. A

(a) Assuming a resistivity of 1x1013 N.m, calculate the resistance between the ends of a rubber band that is 20 cm long and 2.5 mm in diameter. Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. N (b) Calculate the resistance between the 'heads' and 'tails' sides of a penny that is 1 mm thick and 2 cm in diameter. Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. N (c) WARNING! Do not try this at home! What is the expected current that each would carry if it were connected across a 104 V power supply? rubber band The correct answer is not zero. A penny Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. A

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)...

See similar textbooks

Similar questions

A 46.0-g sample of a conducting material is all that is available. The resistivity of the material is measured to be 13 x 10-8 - m, and the density is 7.51 g/cm³. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5 2. (a) What length of wire is required? m (b) What must be the diameter of the wire? mm Submit Answer
A 2.0 cm long tungsten filament in a florescent light bulb has a radius of 0.3 mm. Assume constant 20 degree Celsius temperature during operation of the light bulb. 1 Calculate the cross-sectional area of the filament. 2Calculate the resistance of the wire.
The radius r of a wire grows linearly with its length I according to r(2) = a+x, where z is the distance from the thinner end of the wire with radius a. Express the resistance as a function of the resistivity of the material p, the length of the wire I and the radii a and b. View Available Hint(s ?
The radii of the two concentric conductive spheres are r1 and r2>r1. The resistivity of the material between the spheres is p. Find the resistance of the material between the spheres.Give your answer in terms of (r1, r2, r, p, I).
Suppose you wish to fabricate a uniform wire out of 1.25 g of copper. If the wire is to have a resistance R = 0.760 2, and if all the copper is to be used, find the following. (a) What will be the length of the wire? m (b). What will be the diameter of the wire? Enter a number. differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. mm Need Help? Read It Watch it Submit Answer
Aluminum and copper wires of equal length are found to have the same resistance. What is the ratio of their radii? Note: You need to use the concept of resistivity and find the resistivity of these two materials to solve this problem. You can find a table of resistivity in your textbook or use the internet.
A straight, cylindrical wire lying along the x-axis has a length L and a diameter d. It is made of a material described by Ohm's law with a resistivity p. Assume potential V is maintained at the left end of the wire at x = 0. Also, assume the potential is zero at x = L. In terms of L, d, V, p and physical constants, derive expressions for the current density in the wire. Select one: O a. J = O b. J = VpL O c. J = 4 Vd O d. J= % O e. J = pL е.
2. Page > of 3 5. Two long coaxial metal cylinders with radii a and b are separated by material of conductivity o (see figure below). The conductivity is not uniform and changes as = (s)0 where k is a constant. If the two cylinders are kept at a potential difference V, find the resistance R between the cylinders. (s)o Hint: Since the conductivity is a function of position, the charge density in the resistive medium is not zero and E does not go like 1/s. However, since the current I is steady, the same current flows across each eylindrical surface. Instead of using Gauss' Law, find E in terms of I, from Ohm's Law. acer F10 F11
Question A2 Pure copper has a resistivity of 1.68 x 10-8 Nm. Some accurate cubes of copper are prepared, and electrical measurements are made, for which current is passed across a pair of opposite faces. a) Comparing a 2.5 cm cube and a 5 cm cube, which will have the higher conductance? Ex- plain your answer. b) Given eight 1 cm cubes, how can they be stacked to get the highest and the lowest resis- tance between opposite faces of the stack? Calculate the resistance of each stack.
Please Asap
Please show solutions
The resistance R of a conductor depends on its shape and physical dimensions and a property of the material called the resistivity p What does the resistivity of a material depend upon? Assuming that the resistivity of copper is a quarter of that of aluminium and that the density of copper is three times that of aluminimium, find the ratio of the masses of copper and aluminium wires with the same length and the same resistance but with different cross - sectional areas .