DQuestion 5 1 pts A capacitor has a large capacitance of 4 F. The capacitor is c

Question

DQuestion 5 1 pts A capacitor has a large capacitance of 4 F. The capacitor is charged by placing a potential difference of 37 volts between its plates. How much energy, in Joules, is stored in the capacitor? Please round you answer to the nearest whole number (integer) 2738 Question 6 2 pts The effective area of each plate of a parallel plate capacitor is 2 m2. The capacitor is filled with a dielectric whose dielectric constant k 5. When a 6-volt potential difference exists across the plates of the capacifor, the capacitor stores 8 85 nJ of energy. Determine the plate separation of the capacitor. 885 x 10-12 C3INm2 Please give your answer in three places 2 pts

Explanation / Answer

5) Energy stored in the capacitor = 0.50 * CV^2

Energy stored in the capacitor = 0.50 * 4 * 37^2

Energy stored in the capacitor = 2738 J

6)

let the plate seperation is d

Capacitance , C = epsilon * area * k/d

energy = 0.50 CV^2

8.85 *10^-9 = 0.50 * 8.854 *10^-12 * 5 * 2/d * 6^2

solving for d

d = 0.18 m

the seperation of plates is 0.18 m

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