p33_086 - 86. (a) Eqs. 33-4 and 33-14 lead to Q= I = I LC =...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
86. (a) Eqs. 33-4 and 33-14 lead to Q = I ω = I LC =1 . 27 × 10 6 C . (b) We choose the phase constant in Eq. 33-12 to be φ = π/ 2, so that i 0 = I in Eq. 33-15). Thus, the energy in the capacitor is U E = q 2 2 C = Q 2 2 C (sin ωt ) 2 . Diferentiating and using the Fact that 2 sin θ cos θ = sin 2 θ ,weobta in dU E dt = Q 2 2 C ω sin 2 ωt . We ±nd the maximum value occurs whenever sin 2 ωt =1 ,wh ichleads(w ith
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

Ask a homework question - tutors are online