The cylindrical surface of plastic cylinder, 20.0 m long and 2.80 cm in diameter is coated...
The cylindrical surface of plastic cylinder, 20.0 m long and 2.80 cm in diameter is coated on the outside with a uniform layer of gold, 0.09 mm thick. A voltage source of 12 V is applied across the flat ends. ρgold = 2.44 × 10−8 Ω · m
What is the resistance of the coated cylinder?
Homework Answers
Add Answer to:
The cylindrical surface of plastic cylinder, 20.0 m long and
2.80 cm in diameter is coated...
A gold wire is 2.40 m long and 0.760 mm in diameter, and it carries a...
A gold wire is 2.40 m long and 0.760 mm in diameter, and it carries a current of 1.44 A. What is the potential difference between the ends of the wire? Let p gold = 2.44 x 10^-8 Ω * m.
A cylinder is 3 cm long and has a diameter of 4 mm. When an electric...
A cylinder is 3 cm long and has a diameter of 4 mm. When an electric potential of 50 V is applied across the ends of the cylinder, it is found to dissipate 2 W of power. What is the resistivity of the material?
c A long cylindrical rod of diameter D1-0.01 m is coated with this new material and...
c A long cylindrical rod of diameter D1-0.01 m is coated with this new material and is placed in an evacuated long cylindrical enclosure of diameter D2-0.1 m and emissivity e2-0.95, which is cooled extenally and maintained at a temperature of 200 K at all times. The rod is heated by passing electric current through it. When steady operating conditions are reached, it is observed that the rod is dissipating electric power at a rate of 8 W per unit...
A steam main of 150 mm outside diameter containing wet steam at 28 bar is insulated...
A steam main of 150 mm outside diameter containing wet steam at 28 bar is insulated with an inner layer of diatomaceous earth, 40 mm thick, and an outer layer of 85 % magnesia, 25 mm thick. The inside surface of the pipe is at the steam temperature, and the heat transfer coefficient for the outside surface of the lagging is 17 W/m2 K. The thermal conductivities of diatomaceous earth and 85 % magnesia are 0.09, and 0.06 40 ME...
(a) Compute the electrical conductivity of a 5.3-mm diameter cylindrical semiconductor specimen 48 mm long in...
(a) Compute the electrical conductivity of a 5.3-mm diameter cylindrical semiconductor specimen 48 mm long in which a current of 0.30 A passes in an axial direction. A voltage of 6.5 Vis measured across two probes that are separated by 32 mm. (2-m)-1 (b) Compute the resistance over the entire 48 mm length of the specimen.
A 1.60 m cylindrical rod of diameter 0.550 cm is connected to a power supply that...
A 1.60 m cylindrical rod of
diameter 0.550 cm is connected to a power supply that maintains a
constant potential difference of 14.0 V across its ends, while an
ammeter measures the current through it. You observe that at room
temperature (20.0 ∘C) the ammeter reads 18.3 A , while at 92.0 ∘C
it reads 17.3 A . You can ignore any thermal expansion of the
rod.
232 Electric Current Exercise 25.11 Constants PartA A 1.60 m cylindrical rod of...
A cylindrical tungsten filament 15.0 cm long with a diameter of 1.10 mm is to be...
A cylindrical tungsten filament 15.0 cm long with a diameter of 1.10 mm is to be used in a machine for which the temperature will range from room temperature (20 ∘C) up to 120 ∘C. It will carry a current of 13.5 A at all temperatures ( Resistivity of tungsten at 20 ∘C is 5.25×10−8Ω⋅m , the temperature coefficient of resistivity at 20 ∘Cis 0.0045 ∘C−1 ) Part B What will be its resistance with that field? Express your answer...
A long cylindrical rod of diameter 220 mm with thermal conductivity 0.5 W/m-K expe riences uniform...
A long cylindrical rod of diameter 220 mm with thermal conductivity 0.5 W/m-K expe riences uniform volumetric heat generation of 25,000 W/m3. The rod is encapsulated by a circular sleeve having 7 W/m K. The outer surface of the sleeve is exposed to cross flow of air at 25°C with a convection coefficient of 25 W/m2-K. Find the temperature at the interface between the rod and sleeve, and on the outer surface. an outer diameter of 410 mm and thermal...
A 1.70 m cylindrical rod of diameter 0.500 cm is connected to a power supply that...
A 1.70 m cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a constant potential difference of 13.0 V across its ends, while an ammeter measures the current through it. You observe that at room temperature (20.0 ∘C) the ammeter reads 18.2 A , while at 92.0 ∘C it reads 17.3 A . You can ignore any thermal expansion of the rod. 1) Find the resistivity and for the material of the rod at 20...
Exercise 25.11 A 1.40 m cylindrical rod of diameter 0.450 cm is connected to a power...
Exercise 25.11 A 1.40 m cylindrical rod of diameter 0.450 cm is connected to a power supply that maintains a constant potential difference of 17.0 V across its ends, while an ammeter measures the current through it. You observe that at room temperature (20.0 ∘C) the ammeter reads 18.2 A, while at 92.0 ∘C it reads 17.1 A. You can ignore any thermal expansion of the rod. Part A Find the resistivity for the material of the rod at 20...
c A long cylindrical rod of diameter D1-0.01 m is coated with this new material and is placed in an evacuated long cylindrical enclosure of diameter D2-0.1 m and emissivity e2-0.95, which is cooled extenally and maintained at a temperature of 200 K at all times. The rod is heated by passing electric current through it. When steady operating conditions are reached, it is observed that the rod is dissipating electric power at a rate of 8 W per unit...
(a) Compute the electrical conductivity of a 5.3-mm diameter cylindrical semiconductor specimen 48 mm long in which a current of 0.30 A passes in an axial direction. A voltage of 6.5 Vis measured across two probes that are separated by 32 mm. (2-m)-1 (b) Compute the resistance over the entire 48 mm length of the specimen.
A 1.60 m cylindrical rod of
diameter 0.550 cm is connected to a power supply that maintains a
constant potential difference of 14.0 V across its ends, while an
ammeter measures the current through it. You observe that at room
temperature (20.0 ∘C) the ammeter reads 18.3 A , while at 92.0 ∘C
it reads 17.3 A . You can ignore any thermal expansion of the
rod.
232 Electric Current Exercise 25.11 Constants PartA A 1.60 m cylindrical rod of...
A long cylindrical rod of diameter 220 mm with thermal conductivity 0.5 W/m-K expe riences uniform volumetric heat generation of 25,000 W/m3. The rod is encapsulated by a circular sleeve having 7 W/m K. The outer surface of the sleeve is exposed to cross flow of air at 25°C with a convection coefficient of 25 W/m2-K. Find the temperature at the interface between the rod and sleeve, and on the outer surface. an outer diameter of 410 mm and thermal...
Most questions answered within 3 hours.
-
In a performance test, each of two cars takes 8.9 s to
accelerate from rest to...
asked 1 minute from now -
Sapphire Aerospace operates 52 weeks per year, and its cost of
goods sold last year was...
asked 2 minutes ago -
A. Suppose your manager indicates that for a normally
distributed data set you are analyzing, your...
asked 2 minutes ago -
For each the following molecules draw the best possible
structure based on formal charges for each...
asked 3 minutes ago -
A proton moves in the plane of this paper toward the top of the
page. A...
asked 12 minutes ago -
different divisions differing lines of business use
different costs of capital because their cost of equity...
asked 8 minutes ago -
Give an algorithm to determine whether or not the elements
of
an array of integers are...
asked 16 minutes ago -
. Gravimetric analysis. The gravimetric analysis that we will
perform in lab occurs according to the...
asked 34 minutes ago -
Learning curve problem:
A company was ordered to make 6 custom made parts. the labor
costs...
asked 31 minutes ago -
When you don’t recall operator precedences you can Guess
Experiment with the compiler Look in a...
asked 35 minutes ago -
GST – Complex issues:
Instructions: The following case study is related to complex tax
issues. You...
asked 38 minutes ago -
We are evaluating a project that costs $836,117, has an
eight-year life, and has no salvage...
asked 38 minutes ago