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For an ohmic conductor, doubling the voltage without changing the resistance will cause the current to:

Correct answer: D. Increase by a factor of 2

  • A. Decrease by a factor of 4
  • B. Decrease by a factor of 2
  • C. Remain unchanged
  • D. Increase by a factor of 2

Explanation

According to Ohm's Law (I = V/R), current is directly proportional to voltage when resistance is constant. Therefore, if the voltage is doubled, the current will also double.

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About Current Electricity

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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