Electronics

2. a unit of electric current equal to a flow of one coulomb per second
4. a substance or device that does not readily conduct electricity
8. the SI unit of electrical resistance, expressing the resistance in a circuit transmitting a current of one ampere when subjected to a potential difference of one volt.
9. the SI unit of electromotive force, the difference of potential that would drive one ampere of current against one ohm resistance
12. An electric current that reverses its direction many times a second at regular intervals, typically used in power supplies
13. an electromotive force or potential difference expressed in volts
14. a flow of electricity which results from the ordered directional movement of electrically charged particles.
15. the degree to which a substance or device opposes the passage of an electric current, causing energy dissipation

1. Neutron a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen
3. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids
5. A law relating the voltage difference between two points, and the electric current flowing between them
6. an electric current flowing in one direction only.
7. a material or device that conducts or transmits electricity
10. The basic unit of a chemical element
11. stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign