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  • Three capacitors each of capacitance  are connected in parallel. To this combin

Three capacitors each of capacitance 1 \mu \mathrm{F} are connected in parallel. To this combination, a fourth capacitor of capacitance 1 \mu \mathrm{f} is connected in series. The resultant capacitance of the system is-

Option: 1

4 \mu \mathrm{F}


Option: 2

2 \mu \mathrm{F}


Option: 3

\frac{4}{3} \mu F


Option: 4

\frac{3}{4} \mu F


Answers (1)

best_answer

 


Use;

\mathrm{ \begin{aligned} & c^{\prime}=c_1+c_2+c_3=3 \mu \mathrm{F} \\ & \frac{1}{c_{A B}}=\frac{1}{C^{\prime}}+\frac{t}{c_4}=\frac{1}{3}+1=\frac{4}{3} \\ & C_{A B}=3 / 4 \mu \mathrm{F} \quad \text { Ans } \end{aligned} }

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