Regarding Ohm’s Law, which statement is NOT correct?

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1. Regarding Ohm’s Law, which statement is NOT correct?

It assumes current through a conductor is directly proportional to applied voltage

A device obeys it when resistance stays independent of the voltage’s magnitude and polarity

A material obeys it when resistance stays independent of the electric field’s magnitude and direction

All homogeneous materials obey it, no matter how strong the applied field becomes

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Even normally Ohmic, homogeneous materials can deviate from Ohm’s Law once the applied field becomes extremely strong — the law only reliably holds within a limited, practical range.