C Cheggcom VA ch24 C Cheggcom x G A very long wire carries x

C Chegg.com VA ch24 C Chegg.com x G A very long wire carries x G A very long wire carries x Physics E&M;: Electric x www.webassign.net/web/Student/Assignment Responses/last?depa13520165 C ABP 2. 1.71/2 points l Previous Answers YF 13 24.P.048. 13/15 Submissions Used My Notes Ask Your Teacher A parallel-plate air capacitor is made by using two plates 13 cm square, spaced 6.6 mm apart. It is connected to a 24-V battery (a) What is the capacitance? 2.3e- 11 F (b) What is the charge on each plate? 5.52e-10 C (c) What is the electric field between the plates? 3636.36 V/m (d) What is the energy stored in the capacitor? 6.6249e-9 J (e) If the battery is disconnected and then the plates are pulled apart to a separation of 13.2 mm, what are the answers to parts (a)-(d)? F capacitance 1.13e-11 5.52e- 10 C charge electric field 3636.36 V/m 1.35e-8 x J energy D My Notes o Ask Your Teacher 3. 2/2 points I Previous Answers YF 13 24.P.057. 6/15 submissions Used

Solution

d) U = 1/2 C V²= 1/2 * 2.3 * 10^-11* 24²= 6.624 * 10^-9 J

e) U = 1/2 Q² / C = Q² / 2 * [1 / [A epsilon / d] ]

U\' = U * d\' / d

= (6.624 * 10^-9) * [13.2 mm / 6.6 mm]

= 13.24 * 10^-9 J