Exam-style question
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Describe the charging curve of a capacitor when connected to a constant voltage source. What happens to the current and voltage over time?.
Model answer
What a good answer should say
- The charging curve of a capacitor shows that the voltage across the capacitor increases exponentially towards the supply voltage, while the current decreases exponentially over time.
- Initially, the current is at its maximum and gradually decreases as the capacitor charges.
Explanation
Why this works
This answer is strong because it accurately describes the behavior of a capacitor during charging, highlighting the exponential nature of both voltage and current. The question tests the understanding of capacitor charging dynamics.
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