A parallel plate capacitor is connected to a battery as shown in figure. Consider two situations :
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A : Key `K` is kept closed and plates of capacitors are moved apart using insulting handle.
B : Key `K` is opened and plates of capacitors are moved apart using insulting handle. Choose the correct options (s).
A. In `A : Q` remains same but `C` changes
B. In `B : V` remains same but `C` changes
C. In `A : V` remains same and hence `Q` changes.
D. In `B : Q` remains same and hence `V` changes