Question

Find the equivalent capacitances of the combinations shown in figure (31-E15) between the indicated points.
Figure

Answer 1

The Equivalent capacitance between the two points in the given circuit is equal to the 8 µF

Explanation:

• By considering the above circuits the equivalent capacitance between the two given points can be calculated by rearranging the circuits as below,
• From this we can calculate the effective capacitance of the circuit is equal to the
• $\text { Ceff }=3 / 8+(3+1 / 2) / X(3+1 / 2) /(3+1 / 2)(3+1 / 2)$
• After solving the above numbers we can get the effective capacitance as = $11 / 6 \mu \mathrm{F}$
• Hence by making the above circuit as star connection the total equivalent capacitance is equal to the  
• Hence the total equivalent capacitance between the two points is 8 µF.