A parallel plate capacitor has plates of area A separated by distance d between them. It is filled with a dielectric a dielectric which has a dielectric constant that varies as 
where 'x' is the distance measured from one of the plates. If 
, the total capacitance of the system is best given by the expression:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
As K is variable we take a plate element of Area A and thickness dx at distance x
Capacitance of element
Now all such elements are is series so equivalent capacitance
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