Electric Charges & Fields: Gauss's Law

Charge is a vector quantity measured in Coulombs (C).

Charge is a scalar quantity measured in Newtons (N).

Charge is a scalar quantity measured in Coulombs (C).

Charge is a vector quantity measured in Newtons (N).

$k frac{7q^2}{r^2}$

$k frac{12q^2}{r^2}$

$12k frac{q}{r^2}$

$k frac{q^2}{r^2}$

$9F$

$3F$

$F/3$

$F/9$

$k frac{5q^2}{2d^2}$

$k frac{q^2}{d^2}$

$k frac{8q^2}{4d^2}$

$k frac{q^2}{2d^2}$

Repulsive

Attractive

Zero

There is not enough information to determine

Along the positive x-axis

Along the positive y-axis

At an angle of 45 degrees between the positive x and y axes

At an angle of 135 degrees between the positive x and y axes

Electrostatic forces are much weaker than gravitational forces.

Electrostatic forces are much stronger than gravitational forces.

Electrostatic and gravitational forces are approximately equal.

Electrostatic forces are slightly stronger than gravitational forces.

Because gravitational forces are always repulsive.

Because large systems tend to be electrically neutral.

Because electrostatic forces have a shorter range.

Because gravitational forces increase with distance.

The alignment of magnetic domains in a material.

The movement of ions in a solution.

The induced rearrangement of electrons within a material under an electric field.

The transfer of protons between atoms.

Conductors have lower permittivity than insulators.

Conductors have higher permittivity than insulators.

Conductors and insulators have approximately the same permittivity.

Permittivity is not a relevant property for conductors.