$A$ thin metallic partition of negligible thickness is inserted between two shaded metallic plates as shown. The remaining ends are then packed with insulating plates to form a container-like structure. Two taps shown are opened at $t = 0$ and finally closed at $t = 5 \ s$. Find the capacitance of the system between $A$ and $B$ after closing the taps. (Assume the liquid to be non-conducting). Volumetric flow rates and dielectric constants of the liquid are given.

  • A
    $8.85 \times 10^{-11} \ F$
  • B
    $8.85 \times 10^{-10} \ F$
  • C
    $4.42 \times 10^{-10} \ F$
  • D
    $4.42 \times 10^{-11} \ F$

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