Electrostatics

Coulomb's Law does not apply since one charge negates the effect of the other.

There is no electrostatic force since equal but opposite charges create neutral regions where forces cancel out.

The electrostatic force between them becomes repulsive due to their opposite natures.

The electrostatic force between them is attractive with magnitude $k \frac{|q|^2}{r^2}$.

Neutral

Positive

Negative

Variable

An elliptical orbit around lines of magnetic flux.

A parabolic trajectory in the plane perpendicular to the magnetic field.

A helical path with constant pitch.

A straight-line path parallel to the electric field.

Toward the charge

In a circular path around the charge

It has no specific direction and is random

Away from the charge

Power dissipation would remain unchanged.

Power dissipation would be halved.

Power dissipation would increase by three times its original value.

Power dissipation would reduce to one-third its original value.

E = B \omega \frac{r}{R}

E = \frac{B \omega r}{2}

E = B \omega r

E = \frac{B \omega r^2}{2R}

They have opposite charges

They have like charges

At least one is neutral

Both are neutral

Gravitational

Attractive

No force

Repulsive

It experiences a net force directed toward one of charges.

It experiences an upward-directed net force.

It experiences no net force.

It experiences a downward-directed net force.

Halves the total resistance, enhancing the overall current flow.

Maintains the total charge unaffected by adding elements to the circuit.

Doubles the total voltage, thereby increasing the current.

Doubles the total amperage while maintaining the voltage steady.