2024TrialMultiple choice
Q8
1 mark
Question
Two students are discussing the advantages of magnetic brakes.
Student A says that because the magnetic force is proportional to velocity they provide a smoother braking action.
Student B says that because magnetic fields do no work, the brakes produce no heat.
Which of the students, if any, is/are correct?
A. Student A only
B. Student B only
C. Both student A and student B
D. Neither student A nor student B
Syllabus alignment
Module 6 · Electromagnetism
- Applications of the Motor EffectAnalyse AC and DC generators, AC induction motors and magnetic braking using energy conservation.