Question

calculate equivalent capacitance btw a and b​

Answer 1

Answer: 28/19

Explanation:

1/c2 + 1/c3 + 1/c4 = 1/4 +1/2 +1/4 = 1    (in series) , eq = 1/1 = 1

1/c5 +1/c6 = 1/4 +1/2 = 3/4   (in series) , eq = 1/(3/4) = 4/3

so equivalent of (c2 c3 c4) and (c5 c6) = 1 + 4/3 =7/3         (parallel)

now 4 and 7/4 are in series, so

1/equivalent = 1/4 +1/(7/3) = 1/4 + 3/7 = 19/28

equivalent = 1/(19/28) = 28/19