| A | B |
|---|
| Allows electrons to flow through it easily | conductor |
| closed path through which electrons flow | circuit |
| find series resistance | add the values |
| circuit with more than one path | parallel circuit |
| tendency of a material to oppose electron flow | resistance |
| does not allow electricity to move easily through it | insulator |
| push that causes charges to move | voltage difference |
| find parallel resistance | add the reciprocals of resistors |
| rate at which electrical energy is changed to another energy form | electric power |
| flow of electrons through a conductor | electric current |
| circuit with only one path | series circuit |
| wire resistance depends on: | length, cross sectionsal area, material's resistivity |
| Current is equal to the voltage difference divided by its resistance | Ohm's law |
| car battery category | wet cell |
| metal rod that directs lightning to Earth | lightning rod |
| semiconductor | insulator if pure, conductor with impurities. |
| flashlight uses | dry cell batteries |
