ch30-p059 - 59. (a) We assume i is from left to right...

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

View Full Document Right Arrow Icon
1 1. 2 Rt L Rt L Rt L ee e −− = −⇒= Taking the natural logarithm of both sides (and using ln ln 12 2 bg =− ) we obtain ln 2 ln 2. Rt L t LR ⎛⎞ =⇒ = ⎜⎟ ⎝⎠ 59. (a) We assume i is from left to right through the closed switch. We let i 1 be the current in the resistor and take it to be downward. Let i 2 be the current in the inductor, also assumed downward. The junction rule gives i = i 1 + i 2 and the loop rule gives i 1 R – L ( di 2 / dt ) = 0. According to the junction rule, ( di 1 / dt ) = – ( di 2 / dt ). We substitute into the loop equation to obtain
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