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Home › Analog Electronics › In a basic op-amp astable relaxation oscillator, increasing the timing resistance while all other parameters remain unchanged generally causes the oscillation frequency to?
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Analog ElectronicsComparators & Waveform Generators

In a basic op-amp astable relaxation oscillator, increasing the timing resistance while all other parameters remain unchanged generally causes the oscillation frequency to?

  • AIncrease
  • BDecrease
  • CRemain exactly unchanged
  • DBecome infinite
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Correct Answer: B. Decrease
Explanation: Increasing timing resistance increases the RC charging/discharging time, so the oscillation period grows and frequency decreases.
Reference: Standard analog electronics: relaxation oscillator timing
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