|
Experiment
DL17 Magnet Falling Through A Coil
|
| Objectives |
- Study the e.m.f. induced as a bar magnet falls through a coil
- Study the directions of induced e.m.f. before and after passing through the coil
- Study the total flux from the graph of induced e.m.f. against time
|
|
| Description |
| In this activity, you will use a Voltage Sensor to study the induced e.m.f. as a bar magnet falls through a coil. You will make use of the special setting of the data-logger to capture data in a specified period. The captured voltage is plotted against time by the computer. The area under the graph represents the change in total magnetic flux. You will find the area easily by the statistic tools.
|
| Apparatus |
| Science Workshop 750 Interface |
[1] |
| Voltage sensor |
[2] |
| bar magnet, Alnico, 15 cm x 1.3 cm |
[2] |
| induction coil (240-turn) |
[1] |
| Current sensor |
[1] |
| resistor (100 kOhm) |
[1] |
| compass |
[1] |
| AC/DC Electronics Lab (alternative) |
[1] |
|
