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direct current

direct current

oxford

views updated May 11 2018

di·rect cur·rent (abbr.: DC) • n. an electric current flowing in one direction only. Compare with alternating current.

The Oxford Pocket Dictionary of Current English

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direct current

oxford

views updated May 08 2018

direct current A unidirectional current provided by a source of electrical energy. It is used in induced polarization surveys and in some electrical resistivity surveys, although very-low-frequency alternating current sources are being used increasingly to overcome problems of electrode and ground polarization.

A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY

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direct current

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views updated May 23 2018

direct current (DC) See electric current

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