A) 4 \[\mu F\]
B) 10\[\mu F\]
C) 8 \[\mu F\]
D) 120\[\mu F\]
Correct Answer: A
Solution :
The given circuit can also be made in the following way. This is just like Wheat stone bridge. As the bridge is balanced \[\left( \frac{4}{4}=\frac{4}{4} \right),\] there will be no effect on \[\text{10 }\text{F}\]capacitor. Equivalent capacitance in upper arm \[C=\frac{4\times 4}{4+4}=\frac{16}{8}=2\,\mu F\] Equivalent capacitance in lower arm \[C=\frac{4\times 4}{4+4}=\frac{16}{8}=2\,\mu F\] Now C and C" are connected in parallel, their net capacitance will be \[C=C+C=2+2=4\,\mu F\]You need to login to perform this action.
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