The plates of capacitor are attached with non conducting spring of spring constant k. The initial separation between the plates is d and the spring is relaxed initially. Now the charges +Q and -Q is gradually given to the two plates then the capacitance of the capacitor will be ?
Attempt(my thinking): both plates will attract each other so they move x distance towards each other. I am really confused , what should be my approach. I just need a hint or a clue.