click below
click below
Normal Size Small Size show me how
Electricity - 17
| Question | Answer |
|---|---|
| law of electric charges | the law that states that like charges repel and opposite charges attract |
| electric force | the force of attraction or repulsion on a charged particle that is due to an electric field |
| electric field | the space around a charged object in which another charged object experiences an electric force |
| electrical conductor | a material in which charges can move freely |
| electrical insulator | a material in which charges cannot move freely |
| static electricity | electric charge at rest; generally produced by friction or induction |
| electric discharge | the release of electricity stored in a source |
| electric current | the rate at which charges pass through a given point; measured in amperes |
| voltage | the potential difference between two points; measured in volts |
| resistance | in physical science, the opposition presented to the current by a material or device |
| cell | in physics, in electricity, a device that produces an electric current by converting chemical or radiant energy into electrical energy |
| thermocouple | a device that converts thermal energy into electrical energy |
| photocell | a device that converts light energy into electrical energy |
| electric power | the rate at which electrical energy is converted into other forms of energy |
| series circuit | a circuit in which the parts are joined one after another such that the current in each part is the same |
| parallel circuit | a circuit in which the parts are joined in branches such that the potential difference across each part is the same |