| current page 479 | |
| conductor page 480 | |
| resistor page 480 | |
| insulator page 480 | |
| circuit diagram page 484 |
|
| volt page 484 | |
| electromagnet page 488 |
|
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| current page 479 | |
| conductor page 480 | |
| resistor page 480 | |
| insulator page 480 | |
| circuit diagram page 484 |
|
| volt page 484 | |
| electromagnet page 488 |
|
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