Exam-style question
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How does increasing the driving frequency affect a system at resonance?.
- A.It decreases the amplitude of oscillation
- B.It increases the amplitude of oscillation
- C.It has no effect on the amplitude
- D.It causes the system to stop oscillating
Model answer
What a good answer should say
- It decreases the amplitude of oscillation
Explanation
Why this works
As the driving frequency increases beyond the natural frequency, the system's amplitude decreases due to damping effects, moving away from resonance.
Common mistake
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