Electricity and Magnetism Answers

What iS lORenTz force.

What is properties of charge.

Assume there is one electron charge -e inside a spherical region of the uniform charge density p (a Thompson hydrogen model)if the sphere of the radius is given is the 1* 10-10 find the frequency of the radiation emitted by the atom

What is electric charge.

Suppose the x − y plane is electrically charged with a constant charge density σ.
Find the electric field at a hight h from the x − y plane. Using gauss’s law.

Suppose the x − y plane is electrically charged with a constant charge density σ.
Find the electric field at a hight h from the x − y plane. Use Coulomb’s law.

Suppose we are leaving in a two dimensional world (i:e: there is no z direction/axis).
Assuming that Gauss’s law is valid in this world, find the electric field at a distance
r from for a point charge q. Is the answer same as what we studied in class?

A parallel plate capacitor is filled with insulating material of dielectric constant ε.
Calculate the capacitance.

Suppose the z axis is uniformly charged with a constant charge density λ. Calculate
the work done to bring a charge Q from a distance y = y2 to y = y1 along y axis.

In Figure, the electric field lines on the left have twice the separation of those on the right.
(a) If the magnitude of the field at B is 40 N/C, what is the magnitude of the force on a proton at A?
(b) What is the magnitude of the field at A?