The identical metal plates with large surface areas are kept parallel to each other as shown in figure. The left most plate is given a charge $Q$ , the rightmost a charge $-2Q$ and the middle one remains neutral. Find the charge appearing on the outer surface of the rightmost plate
  • A$-Q/4$
  • B$-2Q$
  • C$-Q$
  • D$-Q/2$
Medium
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