Question

A total charge Q is distributed uniformly throughout a sphere of radius a. The sphere is then rotated with constant angular speed w about a diameter. Assume the charge distribution is unaffected by the rotation, and find J(volume current density) everywhere within the sphere. (Express it in spherical coordinates with the polar axis coinciding with the axis of rotation.) Find the total current passing through a semicircle of radius a fixed in space with its base on the axis of rotation

Answer #1

A positive charge +Q is distributed uniformly throughout the
volume of an insulating sphere with radius R. Find the electric
potential V at a point P a distance r from the center of the
sphere. Plot the electric potential V vs. the distance r from the
center of the sphere for 0 < r < 2R

Charge Q is distributed uniformly throughout the volume of an
insulating sphere that has radius R. What is the potential
difference between the center of the sphere and the surface of the
sphere?

5. Consider a system consisting of an insulating sphere of
radius a, with total charge Q uniformly spread throughout its
volume, surrounded by a conducting spherical inner radius b and
outer radius c, having a total charge of -3Q. (a) How much charge
is on each surface of the spherical conducting shell? (b) Find the
electric potential for all r, assuming v=0 at infinity.

An excess positive charge Q is uniformly distributed throughout
the volume of an insulating solid sphere of radius R = 5.0cm. The
magnitude of the bold E with bold rightwards harpoon with barb
upwards on top-field at a point 10.0cm from the center of the
sphere is given to be 4.5x10^6 N/C.
a. What is the value (in units of μC) of
charge Q?
b. What is the magnitude of the -field at the surface of the
sphere?
c. What...

A solid insulating sphere has total charge Q and radius R. The
sphere's charge is distributed uniformly throughout its volume. Let
r be the radial distance measured from the center of the
sphere.
If E = 440 N/C at r=R/2, what is E at r=2R?
Express your answer with the appropriate units.

A thin dielectric disk with radius a has a total charge +Q
distributed uniformly over its surface (Figure 1). It rotates n
times per second about an axis perpendicular to the surface of the
disk and passing through its center. Find the magnetic field at the
center of the disk.
Find the current of the rotating ring.
Express your answer in terms of some or all of the variables Q,
a, r, dr, n, and the constant π

A total charge of 25.0 nC is distributed uniformly through an
insulating sphere with a radius of 18.00 mm. The total electric
flux (in N m2/C) through a concentric sphere with a
radius of 9.00 mm

Consider a solid uniformly charged copper sphere with charge Q
and radius R. Showing all Steps,
(a) Calculate the potential of the spherical charge inside and
outside of the sphere.
(b) Calculate the electric field of the spherical charge from
the potential in part (a) for the inside and outside regions.

A total charge of 20.0 nC is distributed uniformly through an
insulating sphere with a radius of 6.00 cm. The total electric flux
(in N m2/C) through a concentric sphere with a radius of
3.00 cm is:
K = 9 x 10+9 N.m2.C-2 ,
ε0 = 8.85 x 10-12
C2.N-1.m-2

(physics 2)
Charge Q is distributed uniformly over the volume of an insulating
sphere of radius R. What is the potential difference between the
center of the sphere and the surface of the sphere?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 23 minutes ago

asked 23 minutes ago

asked 28 minutes ago

asked 41 minutes ago

asked 45 minutes ago

asked 49 minutes ago

asked 57 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 3 hours ago