Question

Which formula gives the equivalent capacitance of capacitors in series?

Options

• \[C_S=C_1+C_2+C_3+\cdots\]

• \[C_S=C_1C_2C_3\]

• \[\frac{1}{C_S}=\frac{1}{C_1}+\frac{1}{C_2}+\frac{1}{C_3}+\cdots\]

• \[\frac{1}{C_S}=C_1+C_2+C_3+\cdots\]

Answer 1

The series formula states that the reciprocal of the equivalent capacitance equals the sum of the reciprocals of the individual capacitances. This differs from the direct sum used for parallel capacitors.