Which changes would cause the greatest increase in the rate...

Which changes would cause the greatest increase in the rate of flow of charge through a conducting wire? (A) increasing the applied potential difference and decreasing the length of wire (B) increasing the applied potential difference and increasing the length of wire (C) decreasing the applied potential difference and decreasing the length of wire (D) decreasing the applied potential difference and increasing the length of wire

Which changes would cause the greatest increase in the rate of flow of charge through a conducting wire?
(A) increasing the applied potential difference and decreasing the length of wire
(B) increasing the applied potential difference and increasing the length of wire
(C) decreasing the applied potential difference and decreasing the length of wire
(D) decreasing the applied potential difference and increasing the length of wire

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Key Concepts

Electric Current

Electric current is the rate at which electric charge flows through a conductor. It is measured in amperes and is directly influenced by both the potential difference across the conductor and the conductor's resistance, as described by Ohm's law.

Ohm's Law

Ohm's law is a fundamental principle in electricity that relates the voltage across a conductor to the current flowing through it and the resistance present. It is expressed with the formula I = V/R, where any increase in voltage, or decrease in resistance, results in an increase in current.

Resistance

Resistance is a property of a material that quantifies how much it opposes the flow of electric current. It depends on factors such as the material's resistivity, length, and cross-sectional area; increasing the length of a conductor typically increases its resistance, thereby reducing the current for a given voltage.

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