Ammeter in both vanes, the vanes repel each other and the moving vane deflects against the restoring force provided by fine helical springs. The deflection of a moving iron meter is proportional to the square of the current. Consequently, such meters would normally have a non linear scale, but the iron parts are usually modified in shape to make the scale fairly linear over most of its range. Moving iron instruments indicate the RMS value of any AC waveform applied. Moving iron ammeters are commonly used to measure current in industrial frequency AC circuits. In a hot-wire ammeter, a current passes
Electrical Water Pageant premiers of the updated version of the Disneyland Main Street Electrical Parade and new (but similar) Walt Disney World Main Street Electrical Parade used a new version of "Baroque Hoedown" updated by Don Dorsey. The original lineup of floats for the Electrical Water Pageant were: While the 1971 version of "Baroque Hoedown" would play along with the Electrical Water Pageant through 1976, Disney melodies were added to the track and some of the floats were repositioned and others completely changed in 1972; and remained that way through 1976. While the track was essentially the same as what was heard during