Electircity
Download as PPTX, PDF0 likes257 views
An electric circuit allows electrons to flow from atom to atom through a single path. Parallel circuits have an advantage over series circuits because if one bulb goes out, the others will still glow. Electric motors change electrical energy to kinetic energy using an electromagnet, permanent magnet, and a mechanism to change current direction. Generators produce electrical energy by changing mechanical energy into current using a permanent magnet and spinning coil of wire.
1 of 4
Download to read offline
Electircity
- 1. Electric CurrentElectric CircuitElectrons are pushed from atom to atomA series circuit with only one path for current to flow through.Electrons have negative chargeParallel circuits have an advantage over series circuit.The second bulb will still glow after the first bulb goes out.
- 2. Magnetic FieldsSpace around a magnet in which it can affect other magnets.Magnetic domainIs made up of a large number of atoms whose magnetic fields point in the same direction.Earth acts like a giant magnet. It has a magnetic field this is what causes all compasses to point north.
- 3. Electric MotorIs made of an electromagnet, a permanent magnet, and an object that changes the direction of the electric current. An electric motor changes electrical energy to kinetic energy.
- 4. Magnetism and ElectricityMagnetic fields can also be used to make electric current in a wire.GeneratorChanges mechanical energy into electrical energy.They are made of a permanent magnet and a coil of wire.The coil must spin in order to produce an electric current