Unit 6- Electricity & Magnetism
Electrical Circuits- Circuitos Eléctricos
Electrical Charges- Cargas Eléctricas
Electrical Current- Corriente Eléctrica
“In a way”- De manera, de forma
Photovoltaic Cells- Células Fotovoltaicas
Light Bulbs- Bombilla
Heat – El Calor
Wire- Cable, Alambre
Heat (up)- Calentar
Washing Machine- Lavadora
Electrical Grid- Red Eléctrica
An electrical circuit is formed by various parts connected in a way that allows the circulation of an electrical current.
A generator produces an electric current with a battery. There are various types of generators:
Batteries are used in small appliances like flashlights and toys.
Photovoltaic Cells transform light into electrical current. Some calculators have small ones.
Alternators produce electrical currents thanks to a turning mechanism. These are used to recharge a car battery or power a bike light for example.
Light Bulbs, Electric Motors and other components convert the electrical current into light, movement, heat, and sound.
Switches make it possible to control the current in the circuit. They make the current flow and stop flowing.
When electrical currents circulate through a conductor, they can produce heat, light, sound, magnetism and movement. When an electrical current circulates through a wire, it can heat up. This is what happens in a toaster. Electrical current can produce light as we see in a light bulb. Sound can be produced with electrical current like in speakers in a radio. When an electrical current circulates through a wire, the wire behaves like a magnet, as in an electromagnet. In electric motors the current produces a turning movement like in a fan.
Many electrical appliances like lamps and washing machines do not work with batteries. They must be connected to the electrical grid through a socket.