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Three capacitances, each of 3 μ F , are provided. These cannot be combined to provide the resultant capacitance of :

Options

  1. A2 μ F
  2. B6 μ F
  3. C1.5 μ F
  4. D1 μ F

Correct answer

B. 6 μ F

Step-by-step solution

Equivalent capacitance will be maximum for parallel combination and Minimum for series combination ∴ Possibilities are 1) C = 1 μ F 2) C = 9 μ F 3) 1 C = 1 6 + 1 3 = 3 6 ∴ C = 2 μ F 4) ​ C = C 2 + C = 3 2 × C = 3 2 = 1.5 μ F

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