In: Physics

It was shown in Example 21.11 (Section 21.5) in the textbook that the electric field due to an infinite line of charge is perpendicular to the line and has magnitude E=λ/2πϵ0r. Consider an imaginary cylinder with a radius of r = 0.105 m and a length of l = 0.410 m that has an infinite line of positive charge running along its axis. The charge per unit length on the line is λlambda = 5.65 μC/m .

What is the electric flux through the cylinder due to this infinite line of charge?

What is the flux through the cylinder if its radius is increased to r=0.565 m ?

What is the flux through the cylinder if its length is increased to l=0.785 m ?

find electric field and electric potential due to positive
charges distributed at a surface of the sphere of the copper
atom

A proton and an electron are moving due east in a constant
electric field that also points due east. The electric field has a
magnitude of 3.0

Bremsstrahlung is due to acceleration or deceleration of charged
particles in a electric field of another charged particle? When
heavy charged particles, like p, alpha produce Bremsstrahlung is
due to the electrons electric field or nucleus electric
field?

Find the expression for the electric field due to a finite size
of a line charge in a certain distance. Then derive an expression
for the electric field due to an infinite size of a line charge
from what you found for the finite charge. Show that you can come
up with a same using the Gauss law.

4) A proton is suspended in the air by an electric field where
the acceleration due to gravity is g. What is the strength of this
electric field?
2) What is the value of the electric field .5 m from a square
piece of metal which is 1 km x 1 km and has a net charge of 1
C?

1. The magnitude of the electric field due to a small charged
object is 12N/C at a distance of 6m from the charge. What is the
field 3m away from the charge?
2. Two charged spheres, 3 cm apart, repel each other with a
force of 2.4 x10^-8N. Determine the magnitude and sign of the
charge on each, if one has twice the charge (of the same sign) as
the other.
3. Calculate the electric field intensity midway between two...

When you calculate the net electric field in a location due to
the presence of more than one large charge (Q), it is generally not
helpful to include the sign of the charges in the
equation for electric field. Why not? Specifically, what does the
sign of a charge tell you about the direction of the electric
field, and what does the sign of a charge NOT tell you
about the direction of the electric field?

Consider the mass spectrometer shown schematically in the figure
below. The magnitude of the electric field between the plates of
the velocity selector is 2.40 103 V/m, and the magnetic field in
both the velocity selector and the deflection chamber has a
magnitude of 0.040 0 T. Calculate the radius of the path for a
singly charged ion having a mass m = 2.04 10-26 kg.

Given the two charged particles shown in the figure below, find
the electric field at the origin. (Let
q1 = −26.00 nC and
q2 = 7.00 nC. Express your
answer in vector form.) q1 is at (2,4) and q2 is at (-2,3)

In this problem we want to calculate the electric field due to
several charge linear distributions .a) Consider a thin rod of
length L. The rod carries a uniform charge density, λ, and total
charge Q. Calculate the electric field at a point p that is on the
rod’s cylindrical axis of symmetry and a distance d away from the
end of the rod. Do this by direct integration. How does your
expression be have as L→∞?b) Repeat, with the...

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