| A | B |
|---|
| Generator | Produces either AC or DC current. |
| DC | Direct Current |
| AC | Alternating Current |
| Battery | A combination of two or more cells. |
| Friction | The oldest known method for producing electricity. |
| Magnetism | The most common method for producing electricity. |
| Photovoltaic Cell | Uses light to produce electricity. |
| Thermocouple | Uses heat to produce electricity. |
| Piezoelectric effect | Uses pressure to produce electricity |
| Primary cells | Cells that cannot be recharged. |
| Secondary cells | Cells that can be recharged. |
| Alkaline Cell | Can not be recharged. |
| Ni-Cad | Can be recharged. |
| Chemical Cell | The second most common method for producing electricity. |
| Cell | Method of producing electrical energy consisting of two dissimilar metals, copper and zinc, immersed in a salt, acid, or alkaline solution. |
| Ampere-hours | How the ability of a battery to deliver power continuously is expressed. |
| Series | A configuration where the positive erminal of ther cell is connect ot the negative terminal of the second cell, the positive terminal of the second cell is connected to the negative terminal of the third cell and so on. |
| Series-parallel | A combination of using series and parallel configurations. |
| Parallel | A configuration where all the postivie terminals are connected together and all the negative terminals are connected together. |
| Voltage drop | The energy used by a circuit. |
| Voltage rise | The voltage applied to a circuit. |
| Electrical ground | Provides a common reference point. |
| Earth ground | Used to prevent electric shock by keeping all appliances and equipment a the same potential. |
| It = I1 =I2 = I3... | Current remains the same. |
| Et = E1 + E2 + E3... | Voltage is additive. |
| It = I1 + I2 + I3... | Current is additive. |
| Et = E1 = E2 = E3... | Voltage remains the same. |
