Activities/Turtle Art/Using Turtle Art Sensors: Difference between revisions
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An inexpensive [http://en.wikipedia.org/wiki/Current_transformer current transformer] can be built to measure AC amps. | An inexpensive [http://en.wikipedia.org/wiki/Current_transformer current transformer] can be built to measure AC amps. | ||
50 turns of insulated copper wire are wrapped on a soft iron bar | 50 turns of insulated copper wire are wrapped on a soft iron bar. Threaded shaft, nuts and another bar complete the magnetic circuit. | ||
[[File:Current transformer1.jpg]] | [[File:Current transformer1.jpg]] | ||