Ammeter Wattmeter for an alternative use for this instrument. Moving iron ammeters use a piece of iron which moves when acted upon by the electromagnetic force of a fixed coil of wire. The moving-iron meter was invented by Austrian engineer Friedrich Drexler in 1884. This type of meter responds to both direct and alternating currents (as opposed to the moving-coil ammeter, which works on direct current only). The iron element consists of a moving vane attached to a pointer, and a fixed vane, surrounded by a coil. As alternating or direct current flows through the coil and induces a magnetic field
What If She's an Angel What If She's an Angel "What If She's an Angel" is a debut song written by Bryan Wayne, and recorded by American country music artist Tommy Shane Steiner. It was released in December 2001 as the first single from Steiner's debut album "Then Came the Night". The song reached number 2 on the "Billboard" Hot Country Singles & Tracks chart in May 2002, becoming his only hit single. It was also Steiner's only entry on the "Billboard" Hot 100, peaking at 39. "What If She's an Angel" debuted at number 52 on the U.S. "Billboard" Hot Country Singles & Tracks