Exam-style question
Try this first
Which of the following correctly describes the relationship between current, magnetic field, and force on a conductor?.
- A.Force is directly proportional to the magnetic field and inversely proportional to the current
- B.Force is directly proportional to both the magnetic field and the current
- C.Force is inversely proportional to the magnetic field and directly proportional to the current
- D.Force is independent of both the magnetic field and the current
Model answer
What a good answer should say
- Force is directly proportional to both the magnetic field and the current
Explanation
Why this works
The relationship is described by the equation F = BIL, indicating that the force (F) on a conductor is directly proportional to both the magnetic flux density (B) and the current (I) flowing through the conductor, as well as the length (L) of the conductor within the magnetic field.
Common mistake
No common mistake is linked to this question yet.