P 1.2-2 The current in a circuit element is i(t) = 4(1–e^–5t) A when t ≥ 0 and i(t) = 0 when t < 0. Determine the total charge that has entered a circuit element for t ≥ 0.

Hint:

Answer: q(t) = 4t + 0.8e^–5t– 0.8 C for t ≥ 0

Since i(t) = 0 for t<0, q(t) is also zero for t<0.

Since again i(t) = 0 for t<0. So

Dr. Donovan's Classes Page	Dr. Donovan's PH 320 Homework Page	PH 320 Homework Chapter 1 Page
Dr. Donovan's Main Web Page	NMU Physics Department Web Page	NMU Main Page

Please send any comments or questions about this page to ddonovan@nmu.edu

This page last updated on September 27, 2018