
1) Electrical circuit
Found on
https://www.crosswordclues.com/clue/unbalanced-line

In electrical engineering, an unbalanced line is a transmission line, often coaxial cable, whose conductors have unequal impedances with respect to ground; as opposed to a balanced line. Microstrip and single-wire lines are also unbalanced lines. == General description == Any line that has a different impedance of the return path may be considered...
Found on
http://en.wikipedia.org/wiki/Unbalanced_line

A signal line with two conductors: one that carries the signal, the other at ground potential. The ground conductor is often used as the shield. Unbalanced lines are more subject to the effects of ambient magnetic or electric fields than balanced lines. (WW)
Found on
http://www.encyclo.co.uk/local/22286
No exact match found.