Magnetic Fields

Decreases with the inverse of squared distance

Increases with distance

Remains constant regardless of distance

Decreases linearly with distance

The excess negative charge spreads out even more along the surface.

The excess negative charge stays within the conductor but moves towards one end.

The excess negative charge flows into the ground, lowering the net charge of the conductor.

Kinetic energy

Electrical charge

Total energy

Potential energy

Halving both its diameter and carrying current

Quadrupling just its carrying current while other factors remain unchanged

Doubling just its carrying current while maintaining all other parameters constant

Doubling both its radius and carrying current while keeping it centered on its original axis

B = $\mu_{0}IR$

B = $\frac{2\mu_{0}I}{R}$

B = $\frac{\mu_{0}I}{4\pi R^{2}}$

B = $\frac{\mu_{0}I}{2R}$

The magnetic field due to a current-carrying wire.

The electric field inside a capacitor.

The force between two point charges.

The resistance in an electrical circuit.

The orientation of an induced emf in a loop of wire.

The direction of the magnetic field lines around a straight conductor.

The path taken by protons moving perpendicular to an electric field.

The direction of electron flow in a circuit.

The resistance of the wire.

The capacitance associated with the wire.

The magnetic field enclosed by a loop around the wire.

The electric potential across the wire.

Electric repulsion between them diminishes as relativistic effects make electrons appear slower thus reducing net negative charge seen by an observer.

Magnetic attraction between them appears increased due to enhanced charge density from length contraction even though their currents remain unchanged.

No change occurs because relativistic effects are symmetrical therefore cancel out when considering electromagnetic interactions between two similar conductors.

Magnetic repulsion increases as relativistically contracted electrons behave like faster-moving charges generating stronger opposing fields despite steady currents.

Tangential magnetic field lines surround the hole in an inner circle of increasing radius with decreasing field strength as distance from hole increases

Radial magnetic field lines emanate outward from the puncture hole while current distributes evenly across the plane

Uniform magnetic field lines pass straight through the hole without deflection or distortion due to current flow

Parallel magnetic field lines encircle the hole with direction given by right-hand rule as current circulates through the plane around the puncture