In forced oscillations, what is the phase difference between the driving force a

Practice Questions

Q1
In forced oscillations, what is the phase difference between the driving force and the displacement at resonance?
  1. 0 degrees
  2. 90 degrees
  3. 180 degrees
  4. 270 degrees

Questions & Step-by-Step Solutions

In forced oscillations, what is the phase difference between the driving force and the displacement at resonance?
  • Step 1: Understand what forced oscillations are. This is when an external force is applied to a system to make it oscillate.
  • Step 2: Learn about resonance. This occurs when the frequency of the driving force matches the natural frequency of the system.
  • Step 3: Know what phase difference means. It is the difference in the timing of two oscillating quantities, measured in degrees.
  • Step 4: At resonance, the driving force and the displacement of the system reach their maximum values at the same time.
  • Step 5: Since they reach their maximum values together, the phase difference is 0 degrees, meaning they are in phase.
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