Theory
Practice Questions
| 1. |
Electromagnet
Difficulty: easy |
1
|
| 2. |
Construction of an electromagnet
Difficulty: easy |
2
|
| 3. |
Working principle of electromagnet
Difficulty: hard |
4
|
| 4. |
Effect of current on the strength of an electromagnet
Difficulty: medium |
3
|
| 5. |
Effect of number of turns on electromagnet strength
Difficulty: medium |
1
|
| 6. |
Effect of core material in electromagnet
Difficulty: medium |
2
|
| 7. |
Factors affecting the strength of an electromagnet
Difficulty: medium |
1
|
| 8. |
Permanent magnets
Difficulty: easy |
2
|
| 9. |
Difference between electromagnet and permanent magnet
Difficulty: hard |
5
|