Physics

1. a complete electrical network with a closed loop giving a return path for current.
8. an electromotive force or potential difference expressed in volts
9. In electricity, a measurement of the difficulty encountered by a power source in forcing electric current through an electrical circuit, and hence the amount of power dissipated in the circuit.
13. Circuit circuit that has two or more paths for current to flow through.
15. circuit the current through each of the components is the same, and the voltage across the circuit is the sum of the voltages across each component.
17. an instrument designed to measure electric current, voltage, and usually resistance, typically over several ranges of value.
18. subatomic particle, symbol e− or β−, with a negative elementary electric charge
21. law states the current through a conductor between two points is directly proportional to the potential difference across the two points.
22. definition a material of such low conductivity that the flow of current through it is negligible.
23. station is an industrial facility for the generation of electric power.

2. an object or type of material that allow the flow of electrical current in one or more directions.
3. subatomic particle, symbol p or p+, with a positive electric charge of +1e elementary charge and mass slightly less than that of a neutron.
4. Is a force between electric currents: two parallel currents in the same direction attract, in oposite directions repel.
5. field the magnetic effect of electric currents and magnetic materials.
6. is a measuring instrument used to measure the current in a circuit.
7. change the voltage of (an electric current).
10. is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.
11. is an instrument used for measuring electrical potential difference between two points in an electric circuit.
12. is a passive two-terminal electrical component that implements electrical resistance as a circuit element.
14. difference the difference of electrical potential between two points.
15. electricity an imbalance of electric charges within or on the surface of a material.
16. an atom or a molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge.
19. a peppery of objects which can be transferred to other objects or converted into different forms.
20. force is one of the most powerful, fundamental forces in the universe.