A parallel plate capacitor has capacitance 
, when there is vacuum within the parallel plates. A sheet having thickness 
of the separation between the plates and relative permittivity 
is introduced between the plates. The new capacitance of the system is :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Original capacitance: 
After inserting dielectric of thickness 
, system becomes two capacitors in series.
Vacuum region: 
Dielectric region: 
Equivalent capacitance: 
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