A) 2: 49
B) 49:2
C) 4 : 49
D) 49 : 4
Correct Answer: C
Solution :
In series combination, \[\frac{1}{{{C}_{1}}}=\frac{1}{1}+\frac{1}{2}+\frac{1}{4}=\frac{4+2+1}{4}=\frac{7}{4}\] \[\Rightarrow \] \[{{C}_{1}}=\frac{4}{7}\mu F\] The parallel combination \[{{C}_{2}}=1+2+4=7\,\mu F\] \[\therefore \] \[\frac{{{C}_{1}}}{{{C}_{2}}}=\frac{4/7}{7}=\frac{4}{49}\]You need to login to perform this action.
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