Capacitors of 3 μF and 6 μF are joined in series. What is the equivalent capacitance?
Answer and explanation
Correct answer: A. 2 μF
- Step 1: For series capacitors , so μF. Answer: 2 μF. Why not the others: 9 μF: adds the capacitances, which is the parallel rule. 4.5 μF: takes the average. 18 μF: multiplies without dividing.
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