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Question

Three capacitors of capacitances 6 µF each are available. The minimum and maximum capacitances, which may be obtained are

A
2μF and 18μF
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B
5μF and 5μF
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C
7μF and 3μF
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D
8μF and 2μF
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Solution

The correct option is A 2μF and 18μF
the minimum capacitance can be obtained by connecting all capacitors in series. Hence this can be calculated as follows:-
1C= 16+16+16=12

C=2μF

Also the maximum capacitance can be obtained by connecting all capacitors in parallel. Hence this can be calculated as follows:-
C=6+6+6=18μF

So, the correct answer is option (A).

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