Exam-style question
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If the capacitor value in an astable circuit is doubled while the resistors remain unchanged, what happens to the oscillation period?.
- A.It doubles.
- B.It halves.
- C.It remains the same.
- D.It increases by a factor of sqrt(2).
Model answer
What a good answer should say
- It doubles.
Explanation
Why this works
The period T is directly proportional to the capacitance C (T = 1.1 × (R_A + 2 R_B) × C). Doubling C therefore doubles the period.
Common mistake
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