An infinite number of identical capacitors each of capacitance 1μF are connected as in adjoining figure. Then the equivalent capacitance between A and B is
A
1μF
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B
2μF
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C
1/2μF
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D
∞
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Solution
The correct option is B2μF Ceq=1+12+14+18+116+...=∑∞n=01(12)n=11−12=2μF