According to Ohm’s law, current in a conductor is directly proportional to:
Voltage
Ohm's law states that at constant temperature the current through a conductor is given by \(I=\frac{V}{R}\).
Here \(V\) is the applied voltage and \(R\) is the resistance.
For a fixed resistance, increasing the voltage increases the current in the same proportion, so current is directly proportional to voltage.
Current is inversely proportional to resistance, and power and resistivity are separate quantities, not what current varies directly with here.
Hence, the answer is Voltage.
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