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Transcript
OHM’S LAW “Provided the physical conditions, such as temperature, are kept constant, the resistance is constant over a wide range of applied potential differences, and therefore the potential difference is directly proportional to the current flowing.” 𝑽 = 𝑰𝑹 OHMIC DEVICES (OHMIC CONDUCTORS) • Those devices which obey the linear relationship of Ohm’s Law at all potential differences • Temperature of this device will NOT change due to the heating effect of the current as voltage changes • No device is truly completely Ohmic—it’s an ideal resistor •Most devices would be considered Non-Ohmic Non-Ohmic vs. Ohmic devices—Current vs. Voltage
