1.

A parallel plate capacitor having a separationbetween the plates d, plate area A and materialwith dielectric constant K has capacitance CNow one-third of the material is replaced byanother material with dielectric constant 2K,so that effectively there are two capacitors onewith area A, dielectric constant 2K and6.0"3another with areaA and dielectric constantK. If the capacitance of this new capacitor isC then is

Answer»

C0 = kAE0/d

when another di-electric is introduced in A/3 area , then they will appear as two capacitors in parallel

so, c1 = 2k(A/3)E0/d = 2/3C0 and c2 = k(2A/3)E0/d = 2/3C0

in series, the Equivalent C = c1+c2 = 4/3C0

so, ratio of C0/C = 1/(4/3) = 3/4 option 4

दो तीन और प्रश्नन और है उनका भी उत्तर दे दीजिए



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