Electricity Terms
... AC & DC Alternating Current and Direct Current. DC is electricity moving in one direction (batteries produce this). AC is current moving back and forth (this is how it comes out of electrical receptacles). Ampere see electric current Coulomb The standard international unit of electric charge. It's t ...
... AC & DC Alternating Current and Direct Current. DC is electricity moving in one direction (batteries produce this). AC is current moving back and forth (this is how it comes out of electrical receptacles). Ampere see electric current Coulomb The standard international unit of electric charge. It's t ...
Chapter 4
... -electricity created the heat in a hair dryer or toaster -chemical energy cranks the starter motor to start your car -an electrical motor blows the cold air your AC makes II. Electrostatics – Study of stationary electric charges Electric charges are POSITIVE or NEGATIVE Matter has mass and ENERGY eq ...
... -electricity created the heat in a hair dryer or toaster -chemical energy cranks the starter motor to start your car -an electrical motor blows the cold air your AC makes II. Electrostatics – Study of stationary electric charges Electric charges are POSITIVE or NEGATIVE Matter has mass and ENERGY eq ...
SA1 REVISION WORKSHEET 3
... 1. Differentiate between short circuiting an overloading of electric circuits. How does a fuse wire protect an electric circuit? 2. What is the difference between direct and alternating currents? Write advantage of using alternating current? 3. With the help of neat diagram describe how you can gene ...
... 1. Differentiate between short circuiting an overloading of electric circuits. How does a fuse wire protect an electric circuit? 2. What is the difference between direct and alternating currents? Write advantage of using alternating current? 3. With the help of neat diagram describe how you can gene ...
Electricity
... • Electric fields (electrostatic force) – Radiate out from a + charge, toward on a – charge – Opposite charges attract, like repel, unlike do not possess an electric field ...
... • Electric fields (electrostatic force) – Radiate out from a + charge, toward on a – charge – Opposite charges attract, like repel, unlike do not possess an electric field ...
Slide 1 - Cobb Learning
... What is an Electromagnet? When an electric current is passed through a coil of wire wrapped around a metal core, a very strong magnetic field is produced. This is called an electromagnet. The more coils wrapped around the core, the stronger the magnetic field that is produced. This stronger mag ...
... What is an Electromagnet? When an electric current is passed through a coil of wire wrapped around a metal core, a very strong magnetic field is produced. This is called an electromagnet. The more coils wrapped around the core, the stronger the magnetic field that is produced. This stronger mag ...
9J Force Fields and Electromagnets
... Force fields and electromagnets Static electricity An atom consists of a central nucleus with small particles called electrons moving around it. An atom normally has no overall charge because it has the same number of positive and negative charges. When you rub two materials together, electrons may ...
... Force fields and electromagnets Static electricity An atom consists of a central nucleus with small particles called electrons moving around it. An atom normally has no overall charge because it has the same number of positive and negative charges. When you rub two materials together, electrons may ...
Electric current
An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in a plasma.The SI unit for measuring an electric current is the ampere, which is the flow of electric charge across a surface at the rate of one coulomb per second. Electric current is measured using a device called an ammeter.Electric currents cause Joule heating, which creates light in incandescent light bulbs. They also create magnetic fields, which are used in motors, inductors and generators.The particles that carry the charge in an electric current are called charge carriers. In metals, one or more electrons from each atom are loosely bound to the atom, and can move freely about within the metal. These conduction electrons are the charge carriers in metal conductors.