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A parallel plate capacitor is connected ...

A parallel plate capacitor is connected to a battery as shown in Figure.
(A) Key K is kept closed and the plates of the capacitor are moved apart using insulating handle.
(B) Key K is opened and plates of capacitors are moved apart using insulating handle.
Which of the following statement is correct?

A

(i) In A: Q remains the same but C changes.

B

(ii) In B : V remains the same but C changes.

C

(iii) In A : V remains the same and hence Q changes.

D

(iv) In B: Q remains the same and hence V changes.

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