the metal plates of capacitor a has an area of 1m^2 separated by a diatance of 0.002m. if a pyrex glass is inserted in between the plates, (a) what will be the change in capacitance? (b) how much energy was stored after insertion if it has a potential difference of 12v?
Capacitance
C=Aϵ0dC=\frac{A\epsilon_0}{d}C=dAϵ0
(A) C=KAϵ0dC=\frac{KA\epsilon_0}{d}C=dKAϵ0
Change in capacitance
(B)
Energy
E=12CV2E=\frac{1}{2}CV^2E=21CV2
E=0.5×CV2E=0.5\times CV^2E=0.5×CV2
E=0.5×2.0355×10−9×122E=0.5\times2.0355\times10^{-9}\times12^2E=0.5×2.0355×10−9×122
E=1.46×10−7JE=1.46\times10^{-7}JE=1.46×10−7J
Need a fast expert's response?
and get a quick answer at the best price
for any assignment or question with DETAILED EXPLANATIONS!
Comments