Question

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.

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?

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 conducting sphere with radius R is concentric
with a very thin insulating shell of radius 2R. Sphere
carries charge Q on its surface. Same amount of charge is present
on the surface of shell also. Charge is
distributed uniformly over the insulating shell. Find the electric
Öeld for the regions:
(i) 0 < r < R, (ii) R < r < 2R, and (iii) r >
2R.

A nonconducting sphere has radius R = 2.54 cm and
uniformly distributed charge q = +4.89 fC. Take the
electric potential at the sphere's center to be
V0 = 0. What is V at radial distance
from the center (a) r = 1.50 cm and
(b) r = R? (Hint: See
an expression for the electric field.)

(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?

Charge Q=+ 3.00 μC is distributed uniformly over the volume of
an insulating sphere that has radius R = 6.00 cm .What is the
potential difference between the center of the sphere and the
surface of the sphere?

A solid nonconducting sphere of radius R = 5.82 cm has
a nonuniform charge distribution of volume charge density
ρ = (13.3 pC/m3)r/R, where r
is radial distance from the sphere's center.
(a) What is the sphere's total charge?
8.23e-15 C
(b) What is the magnitude E of the electric field at
r = 0? (Use any variable or symbol stated above along with
the following as necessary: ε0.)
E = 0
(c) What is the magnitude E of...

A solid insulating sphere of radius a = 2 cm carries a net
positive charge Q = 9 nC uniformly distributed throughout its
volume. A conducting spherical shell of inner radius b = 4 cm and
outer radius c = 6 cm is concentric with the solid sphere and
carries an initial net charge 2Q. Find: a. the charge distribution
on the shell when the entire system is in electrostatic
equilibrium. b. theelectricfieldatpoint:(i)AwithrA =1cm,(ii)BwithrB
=3cm,(iii)CwithrC =5cm from the center of...

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.

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