| A | B |
|---|
| electric current | flow of charged particles (A) |
| conventianal current | flow of positive charge |
| Amp | C/s , q = It |
| Resistors | devices designed for a specific resistance |
| Potentiometer | device designed for variable resistance |
| Switch | device designed to turn on and off a circuit |
| Fuse | device designed to blow when too much current is flowing through the circuit |
| A fuse prevents _____________? | Overheating |
| Ohms law | Resistance is only dependent on the material of the resistor. (Current and voltage do not effect resistance) However, V = IR |
| Ammeters measures | current |
| Voltmeter measures | voltage |
| Ohmmeter measures | resistance |
| Current is measure in | amps |
| Voltage is mesured in | volts |
| Resistance is measured in | ohms |
| Power is measured in | watts = J/s = E/t |
| Power formulas (three) | IV, I2R, V2/R |
| kW-hr in J | 1kW-hr = 3.6EE6J |
| Capacitor | stores electrical energy |
| What are used to generate electrical energy | batteries, generators, solar cells |
