Abstract: J.J. Nervander designed the more- sensitive tangent galvanometer in 1834, which led to a great improvement in precise measurements of electric current. Because of its ingenuous coiling ...

ATTENTION has recently been drawn more than once (notably by Sir William Thomson, and by Mr. W. H. Preece and Mr. Kemp) to the advantages offered, in certain cases of the use of the ...

The mirror galvanometer is one of several instruments used for measuring small amounts of electrical current. Its use in psychological research led to greater understanding of the physiological ...

ON the following principle an ordinary tangent galvanometer can be transformed into an instrument suitable for the measurement of strong currents such as produced by powerful magneto- or ...