A particular charge distribution is centered on the z-axis and extends from z=-∞ to z=+∞ . Its volume charge density is given by the function D p(r) = r(s+r² )3/2 where r is the radial distance from the z-axis and D and s are positive constants. Which of the following statements about this charge distribution are FALSE (select all that apply)? O It has a nonzero electric dipole moment It is cylindrically symmetric The constant D and a dipole moment are expressed in the same units It is possible to use Gauss's law to calculate the electric field generated by this charge distribution

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A particular charge distribution is centered on the z-axis and
extends from z=-∞ to z=+∞ . Its volume charge density is given
by the function
D
p(r) =
r(s+r? )3/2
where r is the radial distance from the z-axis and D and s are
positive constants.
Which of the following statements about this charge
distribution are FALSE (select all that apply)?
O It has a nonzero electric dipole moment
It is cylindrically symmetric
O The constant D and a dipole moment are expressed in the same
units
It is possible to use Gauss's law to calculate the electric field
generated by this charge distribution
Transcribed Image Text:A particular charge distribution is centered on the z-axis and extends from z=-∞ to z=+∞ . Its volume charge density is given by the function D p(r) = r(s+r? )3/2 where r is the radial distance from the z-axis and D and s are positive constants. Which of the following statements about this charge distribution are FALSE (select all that apply)? O It has a nonzero electric dipole moment It is cylindrically symmetric O The constant D and a dipole moment are expressed in the same units It is possible to use Gauss's law to calculate the electric field generated by this charge distribution
A fluoronium ion (H2F*) can be thought of as the superposition of 2 tiny electric dipoles that are
oriented with an angle of 114.75° between them.
The positive end of each dipole has a charge of qe and the negative end of each has (-qe/2),
where qe = 1.6x1019 C. The separation distance d for each of the 2 dipoles is 9.5x1011 m.
95 pm
[Image source: Wikipedia]
114.75°
What happens to the fluoronium ion when it is placed in a uniform electric field (select all that
apply)?
It experiences a net torque about the midpoint of the fluoronium ion's resultant dipole vector
O It experiences a net torque about a point in between the midpoint and the tail the fluoronium ion's
resultant dipole vector
O It experiences no net force
O It experiences a net torque about a point in between the midpoint and the head the fluoronium ion's
resultant dipole vector
O It experiences no net torque
It experiences a net torque about the location of the fluorine (F) nucleus
O It experiences a net force in the direction parallel to the applied electric field
Transcribed Image Text:A fluoronium ion (H2F*) can be thought of as the superposition of 2 tiny electric dipoles that are oriented with an angle of 114.75° between them. The positive end of each dipole has a charge of qe and the negative end of each has (-qe/2), where qe = 1.6x1019 C. The separation distance d for each of the 2 dipoles is 9.5x1011 m. 95 pm [Image source: Wikipedia] 114.75° What happens to the fluoronium ion when it is placed in a uniform electric field (select all that apply)? It experiences a net torque about the midpoint of the fluoronium ion's resultant dipole vector O It experiences a net torque about a point in between the midpoint and the tail the fluoronium ion's resultant dipole vector O It experiences no net force O It experiences a net torque about a point in between the midpoint and the head the fluoronium ion's resultant dipole vector O It experiences no net torque It experiences a net torque about the location of the fluorine (F) nucleus O It experiences a net force in the direction parallel to the applied electric field
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