Ohm's law states that the current is directly proportional to _ and inversely proportional to _
Correct answer: D. voltage, resistance
- A. resistance, current
- B. resistance, voltage
- C. voltage, current
- D. voltage, resistance
Explanation
Ohm's law states that the current (I) flowing through a conductor is directly proportional to the voltage (V) applied across it, and inversely proportional to the resistance (R) of the conductor. Mathematically, this is expressed as:I ∝ V/RorI = V/RThis means that:- If voltage increases, current increases (direct proportionality)- If resistance increases, current decreases (inverse proportionality)
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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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