A solid cube of silver has a mass of 90 g. The density and resistivity of silver are 10.5 g/cm³ and 1.59 x 10-8 m respectively. Hint: You'll have to find the number density of electrons. You'll have to remember some basic chemistry calculations. a) What is the resistance between opposite faces of the cube?

A solid cube of silver has a mass of 90 g. The density and resistivity of silver are 10.5 g/cm³ and 1.59 x 10-8 m respectively. Hint: You'll have to find the number density of electrons. You'll have to remember some basic chemistry calculations. a) What is the resistance between opposite faces of the cube?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 28P: An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps, (a) What is the...

See similar textbooks

Similar questions

An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps, (a) What is the absolute value of the charge density in the wire? (b) What is the drift velocity of the electrons? (c) What would be the drift velocity if the same gauge copper were used instead of aluminum? The density of copper is 8.96 g/cm3 and thedensity of aluminum is 2.70 g/cm3. The molar mass ofaluminum is 26.98 g/mol and the molar mass of copper is 63.5 g/mol. Assume each atom of metal contributes one free electron.
Taking R = 1.00 k and = 250 V in Figure P27.19, determine the direction and magnitude of the current in the horizontal wire between a and e. Figure P27.19
Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b) Find the resistance of 1.00 km of wire that would cause a 0.0100% power loss. (c) What is the diameter of a 1.00-km-long copper wire having this resistance? (d) What is unreasonable about these results? (e) Which assumptions are unreasonable, or which premises are inconsistent?
A regular tetrahedron is a pyramid with a triangular base and triangular sides as shown in Figure P28.73. Imagine the six straight lines in Figure P28.73 are each 10.0- resistors, with junctions at the four vertices. A 12.0-V battery is connected to any two of the vertices. Find (a) the equivalent resistance of the tetrahedron between these vertices and (b) the current in the batten.
A 10.00-meter long wire cable that is made of copper has a resistance of 0.051 ohms, (a) What is the weight if the wire was made of copper? (b) What is the weight of a 10.00-meter-long wire of the same gauge made of aluminum? (c)What is the resistance of the aluminum wire? The density of copper is 8960 kg/m3 and the density of aluminum is 2760 kg/m3.
An electrical conductor designed to carry large currents has a circular cross section 2.40 mm in diameter and is 14.8 m long. The resistance between its ends is 0.107 2 Part A What is the resistivity of the material? ? p= Submit Request Answer Part B If the electric field magnitude in the conductor is 1.29 V/m. what is the total current? ? I = Part C If the material has 8,5 x 1025 free electrons per cubic meter, find the average drift speed under the conditions of part B. VO AE m/s Submit Reguest Answt
Wire C and wire D are made from different materials and have length Lc = Lp = 2.6 m. The resistivity and diameter of wire C are 5.4 x 10-6 Q-m and 1.30 mm, and those of wire D are 2.9 x 10-6 Q-m and 0.60 mm. The wires are joined as shown in the figure and a current of 3.7 A is set up in them. What is the electric potential difference between (a) points 1 and 2 and (b) points 2 and 3? What is the rate at which energy is dissipated between (c) points 1 and 2 and (d) points 2 and 3? D Lp 1 3. (a) Number i Units V (b) Number i Units (c) Number i Units (d) Number i Units
Wire C and wire D are made from different materials and have length Lc = Lp = 2.4 m. The resistivity and diameter of wire Care 4.2 x 10-6 2-m and 1.32 mm, and those of wire D are 1.8 x 10-6 0-m and 0.78 mm. The wires are joined as shown in the figure and a current of 2.7 A is set up in them. What is the electric potential difference between (a) points 1 and 2 and (b) points 2 and 3? What is the rate at which energy is dissipated between (c) points 1 and 2 and points 2 and 3? (a) Number i (b) Number i (c) Number i (d) Number i 1 Units Units Units Units с 2 D L₁
As part of a class project you are given 0.900 g of nichrome and asked to fabricate a wire with uniform cross-section. You use up 95% of the nichrome and make a wire with a resistance of 0.793 Ω. The resistivity of nichrome is 1.00 10-6 Ω · m and its density is 8.31 103 kg/m3. a. What length of wire do you end up with? b. What is the diameter of the wire?
You have a 100 meter long hollow square copper wire that has a side length of 5mm. The diameter of the cylindrical interior is 3.5 mm. If copper had a resistivity of (1.7x10^(-8)Ωm, what is the resistance of the wire? The units for the options are Ω. a.0.022 b. 0.068 c.0.11 d. 0.18 E.0.24
Wire C and wire D are made from different materials and have length LC = LD = 4.3 m. The resistivity and diameter of wire C are 3.4 × 10-6 Ω·m and 1.15 mm, and those of wire D are 1.1 × 10-6 Ω·m and 0.78 mm. The wires are joined as shown in the figure and a current of 4.9 A is set up in them. What is the electric potential difference between (a) points 1 and 2 and (b) points 2 and 3? What is the rate at which energy is dissipated between (c) points 1 and 2 and (d) points 2 and 3?
DLTAILJ TRLUIOUJ ANJULIJ 03CULPHI32010 20.3.0WA.U21. Mf NOTS ASK TUUR TEACHER PRACTICE ANUTHER Consider a portion of a cell membrane that has a thickness of 7.50 nm and 1.3 um x 1.3 um in area. A measurement of the potential difference across the inner and outer surfaces of the membrane gives a reading of 92.6 mV. The resistivity of the membrane material is 1.30 x 107 2. m. (a) Determine the amount of current that flows through this portion of the membrane. A (b) By what factor does the current change if the side dimensions of the membrane portion is halved? The other values do not change.