Question

Two parallel plates, each having area A 3676cm are connected to the terminals of a battery of voltage V, 6 V A as shown. The plates are separated by a distance d 0.42cm. You may assume (contrary to the drawing) that the separation between the plates is small compared to a linear dimension of the plate + A 1) What is C, the capacitance of this parallel plate capacitor? 7.746E-4 uF Submit 2) What is Q, the charge stored on the top plate of the this capacitor? uC Submit 4.6476E-3 3) A dielectric having dielectric constant K 3.5 is now inserted in between the plates of the capacitor as shown. The dielectric has area A 3676 cm and thickness equal to half of the separation (0.21 cm) What is the charge on the top plate of this capacitor? A Id/2 uc Submit 4) What is U, the energy stored in this capacitor? Submit 5) The battery is now disconnected from the capacitor and then the A dielectric is withdrawn. What is V, the voltage across the capacitor? V? A VSubmit TO

Answer 1

Solution: -4 -12 8.80x10 X 36 76x10 4 42 x10 10 P 7.74 X I0 -4 744 X10 MA. -4 (4.74 X10 x 6) He 4 6416x10 e 2) Chorge CV: -3 both Reries 3. re Ceg c KA dts + KA KEGA -12 (3.5)X 8.85X10 x3676x10 4 1+K) 41 X10 x(1+3.5) 1.2049 X1D P 2 tev 4. enesgy= XI2049 XIDX 6 jouler 2.16884 X I0 thesre olieleetie sas charge , wehen 5. 1.2049 x6 xI6 MC - 3 7.2294 xID Now Volitage ACross t -3 7.2294X16 V -4 774 x 10 9. 34 Vol t

Answer 2

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