Rank the electric fluxes through each Gaussian
surface shown in the figure from largest to
smallest. Display any cases of equality in your
ranking
1. d > c > a = b
2. c > b = a > d
3. a = b > d > c
4. d = a > c > b
Rank the electric fluxes through each Gaussian
surface shown in the figure from largest to
smallest. Display any cases of equality in your
ranking
1. d > c > a = b
2. c > b = a > d
3. a = b > d > c
4. d = a > c > b
A spherical surface surrounds a point
charge q at its center. What happens
to the flux through the surface as the
radius of the surface is increased?
1.The flux increases.
2.The flux decreases.
3.The flux remains the same.
A spherical surface surrounds a point
charge q at its center. What happens
to the flux through the surface as the
radius of the surface is increased?
1.The flux increases.
2.The flux decreases.
3.The flux remains the same.
Four equal charges are enclosed in a
square Gaussian surface. If each
charge is modeled with six field lines
coming out of it, what is the net
number of field lines across the left
side of the square?
1.Zero
2.Six
3.Twelve.
4.Twenty-four.
5.Need more information.
Four equal charges are enclosed in a
square Gaussian surface. If each
charge is modeled with six field lines
coming out of it, what is the net
number of field lines across the left
side of the square?
1.Zero
2.Six
3.Twelve.
4.Twenty-four.
5.Need more information.
Consider the charge q = 5 C
shown at right, enclosed in
inside two shells, S1 and S2.
If the total charge on S1 is 2q,
and outside S2 the electric
field is zero, what is the
charge Q on S2?
a)5 C
b)10 C
c)- 5 C
d)- 15 C
e)None of these
S2
Q
S1
2q
q
Consider the charge q = 5 C
shown at right, enclosed in
inside two shells, S1 and S2.
If the total charge on S1 is 2q,
and outside S2 the electric
field is zero, what is the
charge Q on S2?
a)5 C
b)10 C
c)- 5 C
d)- 15 C
e)None of these
S2
Q
S1
2q
q
A point charge –Q is at the
center of a spherical
conducting shell of inner
radius R1 and outer radius
R2. The charge on the
outer surface of the shell is
1. +Q
2. Zero
3. -Q
4. Depends on the total
charge carried by the shell.
A point charge –Q is at the
center of a spherical
conducting shell of inner
radius R1 and outer radius
R2. The charge on the
outer surface of the shell is
1. +Q
2. Zero
3. -Q
4. Depends on the total
charge carried by the shell.
A point charge –Q is at the center
of a spherical conducting shell of
inner radius R1 and outer radius
R2. Suppose that the total charge
on the conducting shell is zero. It
follows that the electric field for
r < R1 and r > R2 points
1. away from the center of the shell
in both regions.
2. toward the center of the shell in
both regions.
3.Toward the center of the shell for
r < R1 and is zero for r > R2.
4. Toward the center of the shell for
r < R1 and is zero for r > R2.
A point charge –Q is at the center
of a spherical conducting shell of
inner radius R1 and outer radius
R2. Suppose that the total charge
on the conducting shell is zero. It
follows that the electric field for
r < R1 and r > R2 points
1. away from the center of the shell
in both regions.
2. toward the center of the shell in
both regions.
3.Toward the center of the shell for
r < R1 and is zero for r > R2.
4. Toward the center of the shell for
r < R1 and is zero for r > R2.
A point charge –Q is at the center of a
spherical conducting shell of inner
radius R1 and outer radius R2. If the
conducting shell is grounded, which
of the following statements is correct?
1. The charge on the inner surface of
the shell is +Q and that on the outer
surface is –Q.
2. The charge on the inner surface of
the shell is +Q and that on the outer
surface is zero.
3. The charge on both surfaces of the
shell is +Q.
4. The charge on both surfaces of the
shell is zero.
A point charge –Q is at the center of a
spherical conducting shell of inner
radius R1 and outer radius R2. If the
conducting shell is grounded, which
of the following statements is correct?
1. The charge on the inner surface of
the shell is +Q and that on the outer
surface is –Q.
2. The charge on the inner surface of
the shell is +Q and that on the outer
surface is zero.
3. The charge on both surfaces of the
shell is +Q.
4. The charge on both surfaces of the
shell is zero.