Conduction, Induction & Static Electricity
This overall rule explains how a positive electric charge and a negative electric charge interact.
What is opposite charges attract?
Copper wire serves this crucial role in a simple electric circuit.
What is an electric conductor (or providing a closed pathway for charges to flow)?
This temporary magnet is created by wrapping a wire coil around an iron core and running an electric current through the wire.
What is an electromagnet?
Gravity and magnetism are both classified as this type of force because physical contact is not required to exert a push or pull.
What is a noncontact force?
Wood, glass, and rubber are everyday examples of this category of electrical material.
What are electrical insulators?
As the physical distance between two charged particles increases, the magnitude of the electric force between them does this.
What is decreases (or weakens)?
In a circuit, a battery acts as this core component.
What is the energy source (or voltage provider)?
Direct Current (DC), such as the current produced by standard batteries, flows in this specific directional pattern.
What is continuously in one direction?
A paperclip sliding across a wooden desk toward a bar magnet is an example of magnetic force acting across this.
What is a distance (or magnetic field)?
Two negative charges brought close together will experience this type of electric force.
What is a repulsive force (repulsion)?
Electric field lines point in this direction relative to a negative point charge.
What is inward / toward the charge?
When a circuit switch is opened, the voltage drop across an electric device drops to this specific numerical value.
What is 0.0 Volts?
An electric generator carries out the exact opposite energy transformation of an electric motor, converting mechanical energy into this.
What is electrical energy?
Copper wire is not magnetic because it lacks these aligned atomic regions.
What are magnetic domains?
The primary physical difference between conduction and induction is that conduction requires this.
What is direct physical contact?
Copper, aluminum, and iron are categorized as these because they allow charges to flow through them easily.
What are electric conductors?
Adding a second battery in series to a simple circuit containing one bulb will cause the bulb's brightness to change in this way.
What is becoming significantly brighter?
In an electric motor, this key component reverses the direction of the current every half-rotation to keep the shaft spinning continuous in one direction.
What is a commutator?
When magnetic domains in an iron nail align in the same direction, their individual fields combine to do this.
What is create a overall/stronger magnetic field (magnetize the nail)?
Electric field lines surround charges; their direction always points away from positive charges and toward these charges.
What are negative charges?
If you bring a charged rod near a neutral metal sphere without touching it and cause the sphere's internal charges to separate, you have charged/polarized it using this method.
What is induction?
In a parallel circuit arrangement, each device or battery sits on one of these separate paths.
What are parallel branches?
Relative motion between a magnetic field and a closed loop of wire induces electric current through a process known by this full term.
What is electromagnetic induction?
Pulling two attracting magnetic poles apart causes potential energy to increase, while pushing two attracting magnetic poles together causes potential energy to do this.
What is decrease?
A material that resists charge movement is an insulator, whereas a material whose electrons/charges move freely is classified as this.
What is an electric conductor?