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The equivalent capacitance for three capacitors (C1, C2, and C3) in series is given by:

1. Ceq = C1 + C2 + C3
2. Ceq = 1 / (1/C1 + 1/C2 + 1/C3)
3. Ceq = C1 × C2 × C3
4. Ceq = C1 × C2 / (C1 + C2)

Correct answer: Ceq = 1 / (1/C1 + 1/C2 + 1/C3)

Solution

For capacitors in series, the reciprocal of the equivalent capacitance is the sum of the reciprocals of the individual capacitances. This is given by the formula Ceq = 1 / (1/C1 + 1/C2 + 1/C3).

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