What are 6 methods of producing EMF?
What is the piezoelectric effect?
When pressure is applied to certain objects a voltage is developed across the object.
What is the Seebeck effect?
A heat applied to two dissimilar metals fused together developes a voltage difference between the junction of fused metals and a separated "cold" connection to a circuit.
Batteries are considered a constant "_____" source.
What type of fuel cell is the most successsful?
Cells which use hydrogen and oxygen.
Emf generated through thermocouples is generally used for?
The piezoelectric effect only occurs in "_____" materials.
What is the most common material used which experiences this phenomenon?
What are the main advantages of solar generation?
What is the main disadvantage?
- No moving parts
- Little maintenance
- No waste.
- High cost.
What is the least common method of producing EMF?
Electrostatics. (triboelectric charging)
A Van de graff generator is known as a constant "_____" device.