Purchase Solution

Force on moving charge, charge density free electron density

Not what you're looking for?

Ask Custom Question

The full question is attached and comes in two parts, the first requires me to find the magnetic force acting on a point charge the second asks me to determine the charge density and current density of the current electrons in the wire as well as the residual positive charge in the wire? Please help and show you working.

Attachments
Purchase this Solution
Solution Summary

The force on a moving charge due to current carrying wire, free electron density, charge density and free electron density is calculated.

Solution Preview

Please see the attached file.

A long straight wire carries a current I. The conduction electrons in the wire have drift speed v and the net charge density of the wire is zero. A point charge Q moves at a speed V parallel to and at a constant distance d from the wire as shown in figure 1. The direction of the velocity of the point charge is the same as the electric current in the wire.

y

Q

d

x

I

1)
Using the coordinate axes shown in figure 1, find the magnetic force acting on the point charge due to the electric current.

The magnetic field due to a long thin conductor carrying current I, at a distance d from it is given by

And its direction is given by right hand thumb rule. Here the current is along x direction so keeping the thumb ...

Purchase this Solution
Free BrainMass Quizzes
Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

Basic Physics

This quiz will test your knowledge about basic Physics.

The Moon

Test your knowledge of moon phases and movement.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

View More Free Quizzes
Related BrainMass Solutions

  • electron and the infinite charged plane

    So the electric field of the infinite changed plane is uniform, and the magnitude is The force on the electron is F = qE, due to the negative change of the electron, the force is in the opposite direction to the electric field.

  • Electron drift velocity

    electron in the conductor moving with a drift velocity vd towards right.

  • Current Electricity and Equivalent Resistance

    Each free electron experiences a force equal to eE in the direction -ve potential to +ve potential (being negatively charged) and starts moving in that direction.

  • Solid State Chemistry - Density, Absorption, Charge

    Hence density of free charge carriers = concentration of impurity in the volume of the matrix.

  • Electrostatics

    For equilibrium: Net horizontal force on the ball = 0 qE = q(σ/ε0) = Tsin39O ......(1) Net vertical force on the ball = 0 mg = Tcos39O ........(2) Dividing (1) by (2): qσ/ε0mg = tan39O = 0.81 Surface charge density σ = 0.81ε0mg/q = 0.81x8.85x10

  • The drift velocity and Hall voltage.

    in this length Vd*dt of the strip and will be equal to = A*(Vd*dt)* where  is the free electron density And hence the charge through the cross-section in time dt is given by dq = A*(Vd*dt)**e and hence the current through the conductor

  • Acidity between p-methoxybenzoic acid and m-methoxybenzoic acid

    The fact that a formal negative charge can only form on the ortho and para positions of the molecule (relative to the methoxy group) illustrates the fact that these two positions experience a greater increase of electron density due to the electron donating

  • Chemical: Gas-Related Problems

    The drift mobility of the free charge caries in a material is 10^-2 m^2 v^-1s^-1, the charge on the electron is 1.6*10^-19 coulombs. Calculate the density of free charge carries if the conductivity is 1.0*10^-6 ohm m.

  • Differences in Acidity Between P-Cyanobenzoic Acid and M-Cyanobe

    The fact that a formal positive charge can only form on the ortho and para positions of the molecule (relative to the cyano group) illustrates the fact that these two positions experience a greater loss of electron density due to the electron withdrawing

View More Related Solutions