Presentation on theme: "Generators Mrs. Brostrom Integrated Science C. Generators II. Magnetism can create electricity – A moving conductor (wire) in a magnetic field generates."— Presentation transcript:
Generators II. Magnetism can create electricity – A moving conductor (wire) in a magnetic field generates electrical current in the conductor Or wire is still and magnet is moving Movement is critical!
Generators III. Magnetism can create electricity Called electromagnetic induction – Electrical current is “induced” Used in generators – Transfers mechanical energy into electrical energy Uses: – Gas powered generators » Gas engine turns rotor – Power plants » Coal, natural gas, or garbage burned → steam – Wind turbine or hydroelectric dam » Turbines power generators
Generators Generators are similar to motors ◦Converts mechanical energy into electrical energy ◦The loop of wire inside turns within a magnetic field and thus produces a current ◦For each half rotation of the loop, the current produced by the generator reverses direction Produces AC (alternating current)
Generators 1. Can be AC (alternating current) ◦Power plants 2. Can be DC (direct current) ◦Hand generator
Draw a series and parallel circuit. What is the advantage of a parallel circuit?