The distance between two plates of a capacitor is d and its capacitance is C 1 , when air is the medium between the plates. If a metal sheet of thickness 
and of the same area as plate is introduced between the plates, the capacitance of the capacitor becomes C 2 . The ratio 
is
Text Solution
Verified by ExpertsThe correct answer is:
A
The formula of capacitance is 
The dielectric constant of metal sheet is K metal = 
The new value of capacitance is
Clearly, the ratio,
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