Answer to Question #283774 in Electrical Engineering for md,golam azam

Question

Connect two conductors to the sheath. Measure the capacitance, Cd between the remaining single conductor and the two other conductors and the sheath. Take the capacitance between the shorted cores and the sheath as Cb. Now determine the effective capacitance of each conductor to the grounded neutral.

Answer 1

The effective capacitance of a combination of two capacitors connected in series is

$$C_\text{eff}=\dfrac{C_1C_2}{C_1+C_2}.$$