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Ruhmkorff coil
[ room-kawrf ]
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Word History and Origins
Origin of Ruhmkorff coil1
1850–55; named after Heinrich Daniel Ruhmkorff (1803–77), German physicist, its inventor
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Example Sentences
The principle is that evidenced in the familiar laboratory apparatus known as the Ruhmkorff coil.
From Project Gutenberg
A Ruhmkorff coil differs from a simple primary coil in three main points.
From Project Gutenberg
A Ruhmkorff coil may also be employed for obtaining sparks in proportion to the current emitted.
From Project Gutenberg
It is well to take certain precautions when operating a Ruhmkorff coil with very rapidly alternating currents.
From Project Gutenberg
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