# 被動符號規定

## 定義

${\displaystyle p=v\ i\,}$
${\displaystyle r=v/i\,}$

${\displaystyle p=-v\ i\,}$
${\displaystyle r=-v/i\,}$

## 參考文獻

1. Kreith, Frank; D. Yogi Goswami. The CRC Handbook Of Mechanical Engineering, 2nd Ed.. CRC Press英语CRC Press. 2005: 5.5–5.6. ISBN 0849308666.
2. Glisson, Tildon H. Introduction to Circuit Analysis and Design. USA: Springer. 2011: 114–116 [2019-08-24]. ISBN 9048194423. （原始内容存档于2017-12-08）.
3. ^ Traylor, Roger L. Calculating Power Dissipation (PDF). Lecture Notes - ECE112:Circuit Theory. Dept. of Elect. and Computer Eng., Oregon State Univ. 2008 [2012-10-23]. （原始内容存档 (PDF)于2017-04-12）.
4. ^ Jamid, Housain A. Class Notes, Class 2, p.5 (PDF). Open Courseware, King Fahd Univ. of Petroleum and Minerals, Saudi Arabia. 2008 [2012-10-23].
5. ^ Shattuck, Dave. Set #5 - Introduction to Circuit Analysis (PPT). ECE 1100: Introduction to Electrical and Computer Engineering. Cullen College of Engineering, Univ. of Houston. 2011 [2013-03-25]., p. 17
6. ^ Prasad, Shalini. Basic Concepts Overview (PDF). Class notes ECE 221: Electric Circuit Analysis. Dept. of Electrical and Computer Engineering, Portland State Univ. 2010 [2013-03-25]. （原始内容 (PDF)存档于2012-09-16）., p.13-16
7. ^ Glover, J. Duncan; Mulukutla S. Sarma; Thomas Jeffrey Overbye. Power System Analysis and Design, 5th Ed.. Cengage Learning. 2011: 53–54. ISBN 1111425779.
8. ^ Lukman, Dedek. Loss minimization in the modified algorithm of load flow analysis in industrial power system. Master's Thesis. Dept. of Electrical Engineering and Telecommunications, Univ. of New South Wales website. March 2002 [2013-01-13].[永久失效連結], p.7
9. ^ Power Flow Sign Convention, p.12. Tutorial on Phasor, Single, and Three Phase Circuits, EE2751: Electrical Energy Systems. Dept. of Electrical Engineering, Hong Kong Polytechnic Univ. website. January 2009 [2013-01-13]. （原始内容存档于2016-03-04）.