Questions
A parallel plate air capacitor has capacity C, distance of separation between plates is d and potential difference V is applied between the plates. Force of attraction between the plates of the parallel plate air capacitor is
detailed solution
Correct option is D
Force of attraction between the plates of the parallel plate air capacitor isF=Q22ε0Awhere Q is the charge on the capacitor, ε0 is the permittivity of free space and A is the area of each plate. But Q=CV and C=ε0Ad or ε0A=Cd ∴ F=C2V22Cd=CV22dTalk to our academic expert!
Similar Questions
Two identical metal plates are given positive charges Q1 and Q2 (<Q1) respectively. If they are now brought close together to form a parallel plate capacitor with capacitance C, the potential difference between them is
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