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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a relaxation oscillator?
💡 Hint: Think about how these oscillators differ from sinusoidal oscillators.
Question 2
Easy
What role does a capacitor play in a relaxation oscillator?
💡 Hint: Consider its function during charging and discharging.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does a relaxation oscillator produce?
- Sine waves
- Square waves
- Triangular waves
- Both square and triangular waves
💡 Hint: Think about the types of waveforms these oscillators generate.
Question 2
True or False: The 555 timer in astable mode only operates on external triggers.
- True
- False
💡 Hint: Recall how a 555 timer works in astable configuration.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an astable multivibrator using a 555 timer with a frequency of 20kHz. Determine the required resistor and capacitor values if R_A is twice R_B.
💡 Hint: Use the formula f = 1.44 / ((R_A + 2R_B) * C) to find values that satisfy the frequency condition.
Question 2
How would increasing the capacitance in a relaxation oscillator affect the overall frequency? Calculate the new frequency given the original capacitor value was 1μF and is changed to 2μF.
💡 Hint: Consider the relationship between capacitance and frequency in RC circuits.
Challenge and get performance evaluation