An instrument for detecting and measuring electric currents; = galvanometer, n. Now disused.

an instrument for measuring the heating power of an electric current, or for determining the strength of a current by the heat produced.

An instrument for estimating the force of electric currents.

Kelvin balance n. an instrument for measuring an electric current consisting of a set of horizontal coils arranged in the form of a balance with a…

An instrument for measuring electric currents of the order of milliamperes. Also (earlier) called milliampere meter n. at milliampere, n. compounds.

a bell-shaped instrument for measuring the strength of an electric current.