Electrostatics
What describes best how Gauss's Law applies to a charged spherical conducting shell?
Incorrect Answer Choice
Incorrect Answer Choice
Incorrect Answer Choice
The electric field is zero anywhere inside the shell space but non-zero outside based on total enclosed charge.
What would be the electric flux through a closed cylindrical surface in vacuum when oriented perpendicular to a uniform electric field ?
times the area of one circular base
times twice the height times times diameter
Zero
times twice the area of one circular base
What happens to excess charge placed on a conductor?
It penetrates into the center of the material.
It spreads out evenly over the surface.
It causes an immediate discharge to the ground.
It stays at the point where it was placed.
What is the net electric flux through a closed surface surrounding an isolated positive point charge?
Zero, since there are no charges outside the surface.
Infinite, as point charges create infinite fields at their location.
Negative, proportional to the magnitude of the charge enclosed.
Proportional to the magnitude of the charge enclosed.
If a parallel plate capacitor with area A and separation d is immersed in a dielectric medium with constant k, what electric field intensity inside results when an external electric field is applied perpendicular to the plates?
The electric field intensity increases to .
The electric field intensity is reduced to .
The electric field intensity becomes zero if .
The electric field intensity inside remains at .
What does Gauss's Law relate to in the context of an electric field?
The potential difference across two points in an electric field.
The magnetic field around a current-carrying wire.
The net electric flux through a closed surface.
The resistance encountered within a closed loop circuit.
Which quantity must be zero when applying Gauss's Law to a closed surface with no charge inside it?
Electric potential
Electric flux
Current
Electric field strength

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For an infinitely long cylinder carrying uniform surface charge density , if one chooses a Gaussian surface as coaxial cylinder with length and radius greater than that of charged cylinder, how does its electric field vary outside?
It decreases exponentially with radial distance.
It increases linearly with radial distance.
It varies inversely with radial distance from axis.
It remains constant regardless of radial distance.
How does increasing dielectric constant affect capacitance when inserted between parallel plates charged to voltage V without disconnecting them from their source?
Capacitance and voltage both remain unchanged resulting in no change in stored energy.
Capacitance increases while voltage remains constant leading to an increase in stored energy.
Capacitance decreases while voltage remains constant leading to a decrease in stored energy.
Capacitance remains unchanged but voltage decreases leading to a decrease in stored energy.
If a solid, non-conducting sphere of radius R has a uniform charge density , what is the electric field at a distance from the center of the sphere where ?
Zero