Cross section of a conductor is directly proportional to the flow of current.give reason?


Question: Cross section of a conductor is directly proportional to the flow of current.give reason?

The cross-sectional area of a conductor is directly proportional to the flow of current because it affects the conductor's resistance. According to Ohm's Law, the current \( I \) through a conductor is inversely proportional to its resistance \( R \) (i.e., \( I = \frac{V}{R} \), where \( V \) is the voltage). A larger cross-sectional area provides more pathways for electrons to flow, reducing the resistance. Lower resistance allows more current to pass through the conductor for a given voltage. Additionally, a larger cross-sectional area helps dissipate heat more effectively, preventing the conductor from overheating and maintaining efficient current flow.

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