Questions
A parallel plate condenser with plate area A and separation d filled with dielectric as shown in fig. The dielectric constants are K1 and K2 respectively. The capacitors will be
detailed solution
Correct option is C
The combination is equivalent to two capacitors in series, each with plate area A and separation d/2.C1=K1ε0A(d/2)=2K1ε0AdC2=K2ε0Ad/2=2K2ε0AdFurther 1C=1C1+1C2Substitute the values of C1 and C2 and obtain C.Talk to our academic expert!
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A parallel plate, air filled capacitor has capacitance C. When a dielectric material of dielectric constant 4 is filled so that half of the space between plates is occupied by it, then percentage increase in the capacitance is equal to
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