Question

с. ЗЕ G = 3 uF C₃ - Cu F Cl What is the equurlent capacity of these cercent (Cep) : SO It seems that there are two ways to solve this problem but gach nie Gulda different awwer. Check ou u corect and why is the other wrong? SOLUTION #1 C. and Ca are in parallel therefore Cia C, + C2 3uF + 3 ut = 6uF. Then Cia end Cs are in series therefore Cap - Ciaz I -34F Data SOLUTION #2 C und Co are in seried therefore Caso 22uF then Cas and C. are in parallel therefore Cep - Ciaz Cast C = 22F + 3 uF = 5 ut.

Answer 1

SOLUTION NUMBER 2 IS THE CORRECT ONE.

C2 AND C3 ARE IN SERIES, THIS IS BECAUSE OF THE VOLTAGE ACROSS THOSE TWO CAPACITORS ARE NOT CONSTANT OR SAME BUT CURRENT IS WHICH IS THE CONDITION OF THE SERIES CONNECTION.

BUT VOLTAGE ACROSS THE C23 AND C1 IS THE SAME AS THEY ARE BRANCHED FROM THE SAME POINT.

AND THIS IS THE CONDITION FOR THE PARALLEL CONNECTION.