In electronics, a norator is a theoretical linear, time-invariant one-port which can have an arbitrary current and voltage between its terminals. A norator represents a controlled voltage or current source with infinite gain.
Inserting a norator in a circuit schematic provides whatever current and voltage the outside circuit demands, in particular, the demands of Kirchhoff's circuit laws. For example, the output of an ideal opamp behaves as a norator, producing nonzero output voltage and current that meet circuit requirements despite a zero input.
Two trivial cases are worth noting: A nullator in parallel with a norator is equivalent to a short (zero voltage any current) and a nullator in series with a norator is an open circuit (zero current, any voltage).
 P. Kumar and Raj Senani, `Bibliography on nullors and their use in circuit analysis, synthesis and design', Analog Integrated Circuits and Signal Processing, Vol. 33, No.1, pp. 65–76, October 2002.
 Raj Senani, A. K. Singh, Pragati Kumar, R. K. Sharma,`Nullors, Their Bipolar and CMOS Implementations and Applications in Analog Circuit Synthesis and Design', pp. 31–59, Chapter 2 in `Integrated Circuits for Analog Signal Processing', Springer, 2013.
- Verhoeven C J M van Staveren A Monna G L E Kouwenhoven M H L & Yildiz E (2003). Structured electronic design: negative feedback amplifiers. Boston/Dordrecht/London: Kluwer Academic. pp. §188.8.131.52 pp. 30–32. ISBN 1-4020-7590-1.