ch27-p071 - 71. (a) In the process described in the...

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

View Full Document Right Arrow Icon
71. (a) In the process described in the problem, no charge is gained or lost. Thus, q = constant. Hence, () 3 1 11 2 2 2 1 2 150 200 3.0 10 V. 10 C qC V C V V V C ⎛⎞ == ⇒= = = × ⎜⎟ ⎝⎠ (b) Eq. 27-39, with τ = RC , describes not only the discharging of q but also of V . Thus, ( ) 91 2 0 0 3000 ln 300 10 10 10 F ln 100 t V VV e tR C V −− =⇒ = = × × which yields t = 10 s. This is a longer time than most people are inclined to wait before
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 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

Ask a homework question - tutors are online