Determine the current density in the wire

Assignment Help Physics
Reference no: EM13486737

A copper wire with a diameter of 1.3 mm has a uniform electric field of 0.45 V/m imposed along its entire length. The temperature of the wire is 36°C. Assume one free electron per atom.

a. Determine the resistivity of the wire.

b. What is the current density in the wire?

c. What is the total current in the wire?

d. What potential difference must exist between the ends of a 4-m length of the wire to produce the stated electric field?

Reference no: EM13486737

Questions Cloud

What is the change in the systems kinetic energy : A 950-kg satellite orbits the Earth at a constant altitude of 105-km. What is the change in the system's kinetic energy
Estimate the power dissipated by the circuit : A series circuit with R=20ohms, C=330 MuF and L=30 mh, is connected to an AC sourceof amplitude 160v and frequencey of 60 Hz, Whats the power dissipated by the circuit
Evaluate the heat capacity of the bomb calorimeter : The temperature of the calorimeter increases by 82.9oC (Celsius). Given that the energy of combustion (?E) for lauric is -37.1 kJ/g, calculate the heat capacity of the bomb calorimeter. Make sure you enter kJ/C for your unit behind the number.
Explain change in the external temperature : A cylinder contains 250 g of Helium at 200 K. The external pressure is constant at 1 atm. There is an increase in temperature of 56 K. Calculate the heat lost or gained by the system in response to this change in the external temperature.
Determine the current density in the wire : A copper wire with a diameter of 1.3 mm has a uniform electric field of 0.45 V/m imposed along its entire length. The temperature of the wire is 36°C. What is the current density in the wire
Evaluate the change in enthalpy of the reaction : Calculate the change in enthalpy of this reaction. Specific heat of the solution = 4.184 J/(g oC) State your answer in kJ with 3 significant figures. Don't forget to enter the unit behind the numerical answer. The molecular weight of KOH is 56.2 g..
What are the rms values of the voltage and current : A series circuit with R=100ohms, L=.5H and C=50 MuF is driven by an ac signal of frequency 75 Hz and amplitude of 18V. what are the rms values of the voltage and current
What is the maximun value of the blocks velocity : A 8.0 kg block oscillates with an amplitude of 0.070 m on a light spring constant k= 13 N/m. What is the maximun value of the block's velocity
What is procedural due and substantive due process : In the Australian accounting sphere the concept of due process is applied within the institutional arrangements for regulating financial reporting and falls particularly within the promulgation of accounting standards.

Reviews

Write a Review

Physics Questions & Answers

  Find an expression for object speed as it hits the ground

An object of mass m is dropped from height habove a planet of mass M and radius R. Find an expression for the object's speed as it hits the ground

  Determine the potential difference across each capacitor

A 0.50-?F and a 1.4-?F capacitor (C1 and C2, respectively) are connected in series to a20-V battery, lculate the potential difference across each capacitor? V1 and V2

  Projectile motion

cientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit.  In one test, this gun accelerates a 5.0kg projectile from rest to a speed of 4.0 x 103 m/s. The net force accelerating the projectile..

  Which has the greater average acceleration

Car A accelerates from 0 mph to 30 mph in 6 seconds. Car B accelerates from 0 mph to 35 mph in 6.5 seconds

  Calculate the power of the electron beam in tube

Electrons in an x-ray tube are accelerated through 105 kV and directed toward a target to produce x-rays. Calculate the power of the electron beam in this tube

  What was the speed of the piece of clay at impact with the

A 10.0 g piece of clay is launched horizontally at 108-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 148 N/m

  Calculate the width of the central maximum

A slit of width 0.26mm is illuminated with monochromatic light of wavelength 540nm , and a diffraction pattern is formed on a screen 1.5mfrom the slit. What is the width of the central maximum

  What was the minumum power rating of the motor

A disk of mass M and radius R is initially at rest. It is acted upon by a constant torque N for a time t. what was the minumum power rating of the motor

  Where is the center of mass of the system

Four objects are situated along the x axis as follows: a 1.70kg object is at -0.9m, a 1.60kg object is at 0.2m, a 2.4-kg object is at the origin, and a 2.50kg object is at -1.10m.

  What is the buoyant force on the diving bell

A diving bell has a weight of 100000 N when measured on shore. What is the buoyant force, FB, on the diving bell

  Compute the wavelength of the laser light

Light from an argon laser strikes a diffraction grating that has 5395 grooves per centimeter. Determine the wavelength of the laser light

  Define the term reflection of displacement

why does d account for the reduction of the distance from 8.5 km to a 0 distance. Is this not a reflection of displacement rather than just distance

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd