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Ohms Law

المؤلف:  GEORGE A. HOADLEY

المصدر:  ESSENTIALS OF PHYSICS

الجزء والصفحة:  p-357

2025-12-29

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Ohm's Law, formulated as the result of experiment, is of very great importance. It is to the effect that the current varies directly as the electro-motive force and inversely as the resistance, and that their relation is expressed by the formula

From this law we can find the current that a known E. M. F. will send through a certain resistance, the resistance through which a known E. M. F. will send a given current, or the E. M. F. required to send a certain current through a known resistance. The law may also be applied to difference of potential instead of to E. M. F.