The current through a conductor is directly proportional to the potential difference between the ends of the conductor, provided that physical conditions remain the same. This is:
Correct answer: B. Ohm's Law
- A. Laplace's Law
- B. Ohm's Law
- C. Coulomb's Law
- D. Charles's Law
Explanation
This statement defines Ohm's Law, which says that current is directly proportional to potential difference when temperature and other physical conditions remain constant.
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Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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