Question

Help System Announcements ES A charged capacitor and an inductor are connected as shown in the drawing. PRINTER VERSION « BACK NEXT . 24 0000 7 22 There is no resistance in the circuit. As Section 23.4 discusses, the electrical energy initially present in the charged capacitor then oscillates back and forth between the inductor and the capacitor. The initial charge on the capacitor has a magnitude of 93.40 C. The capacitance is C = 3.70 UF, and the inductance is L = 70.0 mH. (2) What is the electrical energy stoked initially by the charged capacitor? 28 29 Energy - 42 15 -18 (b) Find the maximum current in the inductor. Imax- dy Next MacBook Pro DII

Answer 1

= a) The energy stored in the capacitoris 92. (3.40x1000) Uc = 1.56x10J 202[3.70x10“) b) The energy stored in the capacitor is transfered to the energy stored in the inductor. So, Uc= Uc max -LI 2 The maximum current in the inductor is 2Uc max L = 2(1.56x104) = 6.676x10-> A = 6.68x10A 70.0x10