ElectrostaticsHard
Question
A parallel plate air capacitor has a capacitance C. When it is half filled with a dieelctric of dielectric constsnt 5, the percentage increase in the capacitance will be
Options
A.400 %
B.66.6 %
C.33.3 %
D.200 %
Solution
Initial capacitance =
Whene it is half filed by a dielectric of dielectric constanst K, then
C1 =
= 2K 
and C2
= 2K 
∴
Hence,%increase in capacitance
=
× 100=
× 100 = 
= 66.6%Create a free account to view solution
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