puzzle 5

4. The.........the resistance, the lower the current flow.
6. is a measure of the opposition to current flow in an electrical circuit.
8. can also be created using energy from the sun, as in photovoltaic cells.
10. current The movement of electric charges is an ..........and produces a magnetic field.
11. it is the production of an electromotive force (emf) in a conductor.
12. Many components, such as........ elements and resistors, have a fixed-resistance value.
13. Materials that present high resistance and restrict the flow of electrons. Examples: Rubber, paper, glass, wood and plastic.
14. ..........of electrical energy can occur naturally (as in lightning), or be produced (as in a generator). It is a form ofenergywhich we use to power machines and electrical devices.
15. Materials that offer very little resistance where electrons can move easily. Examples: silver, copper, gold and aluminum.

1. Electricity is the set of........ associated with the presence and motion of matter that has a property of electric charge.
2. a charge is placed in a location with a non-zero electric field, a force will act on it. Coulomb's law. The magnitude of this force is given by.......
3. which deals with electrical circuitsthat involve active electrical components such as vacuum tubes,
5. The.......the resistance, the higher the current flow.
7. it is technique for testing roots in electromagnetism.
9. Eddy current testing is now a widely used and well understood inspection technique for flaw detection, as well as.......... and conductivity measurements.