The resistance is inversely related to the wire's cross-sectional area. and the amount of flowing current are directly related.
The resistance of the wire decreases with increasing cross-sectional area while increases with decreasing cross-sectional area. Additionally, as R 1/A, a conductor's resistance is inversely related to its cross-sectional area (A). Thus, doubling its cross-sectional size would reduce its resistance by half, while halving it would increase it by the same amount. If the temperature stays constant, the current flowing in a circuit is directly proportional to the applied voltage and inversely proportional to the circuit resistance.
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