š§² Electromagnetic Force Principles
When a current-carrying conductor is placed in a magnetic field, it experiences a force perpendicular to both the current direction and the field direction.
Fleming's Left-Hand Rule
Stretch the thumb, forefinger, and middle finger of your left hand mutually perpendicular:
- First finger ā Magnetic Field (B)
- Second finger ā Current (I)
- Thumb ā Force/Motion (F)
Force Calculation
F = B Ć I Ć L Ć sin(Īø)
Where B is magnetic field strength, I is current, L is conductor length, and Īø is the angle between current and field.
Current Force: 5.0 N
| Parameter | Symbol | Unit | Effect on Force |
|---|---|---|---|
| Current | I | Ampere (A) | Directly proportional |
| Magnetic Field | B | Tesla (T) | Directly proportional |
| Conductor Length | L | Meter (m) | Directly proportional |
| Angle | Īø | Degrees (Ā°) | Maximum at 90Ā° |