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WorksheetsQuiz 2: Electric Flux and Electric Potential
Total questions: 20
Worksheet time: 10mins
Which of the following is the standard (SI) unit for electric flux?
N/C
Nm2/C
Nm2/C2
C2/Nm2
Which of the following measures the flow of electric field through a surface?
electric flux
electric potential
electric potential difference
electric potential energy
Which law states that electric flux of the electric field through any closed surface is equal to the net charge enclosed divided by the permittivity of free space?
Ampere's Law
Coulomb's Law
Faraday's Law
Gauss's Law
A point charge is placed at the center of a spherical gaussian surface. Which of the following will make the electric flux changed?
If the point charge is moved outside the sphere.
If a second point charge is placed outside the sphere.
If the sphere is replaced by a cube of the same volume.
If the point charge is moved to its position but still inside the sphere.
Which of the following best describes Gauss’s law?
A law that describes what an electric field will look like due to a known distribution of charge.
A law that describes what an electric field will look like due to an unknown distribution of charge.
A law that describes what a magnetic field will look like due to a known distribution of charge.
A law that describes what an magnetic field will look like due to an unknown distribution of charge.
TRUE or FALSE. A Gaussian surface is a hypothetical surface whether open or closed.
TRUE
FALSE
TRUE or FALSE. The direction of the electric flux depends on the magnitude of the net charge of the enclosed surface.
TRUE
FALSE
TRUE or FALSE. Gauss’s law relates the electric field of a surface to the net charge enclosed within that surface.
TRUE
FALSE
TRUE or FALSE. The electric flux flowing from inside to outside is negative.
TRUE
FALSE
TRUE or FALSE. The electric flux of a Gaussian surface is equal to zero if it does not enclose a charged particle.
TRUE
FALSE
The quantity electric potential is defined as the amount of ____________________.
force per unit charge
electric potential energy
force acting upon a charge
potential energy per unit charge
Which is the standard (SI) unit for electric potential difference?
Ampere
Coulomb
Joule
Volt
Which is the standard (SI) unit for electric potential energy?
Ampere
Coulomb
Joule
Volt
Which of the following is the other term for electric potential?
capacitance
current
resistance
voltage
While touching the Van de Graaff generator, why does your hair fly up as the generator starts charging?
Because the opposite charge is transferred to the hair.
Because the charge of the generator is transferred to the hair.
Because the charge of the hair is transferred to the generator.
Because the opposite charge of the hair is transferred to the generator.
Which of the following describes electric potential energy?
The capacity for doing work which arises from position or configuration.
The amount of work needed to move a unit charge.
Electric potential per unit charge.
Charge per unit distance.
Which is the standard (SI) unit for electric potential?
Volt
Joule
Coulomb
Ampere
Which of the following describes electric potential?
The capacity for doing work which arises from position or configuration.
The amount of work needed to move a unit charge.
Electric potential difference per unit charge.
Charge per unit distance.
Which of the following is NOT an example of electric potential energy?
An incandescent light bulb is turned off.
A cell phone that is turned off.
A television that is turned on.
Solar cells at night.
There is a hollow, conducting, uncharged sphere with a negative charge inside the sphere. Consider the electrical potential at the inner and outer surfaces of the sphere. Which of the following is true?
The potentials on both surfaces are zero.
The potential on the inner surface is greater.
The potential on the outer surface is greater.
The potentials on both surfaces are equal but not zero.
