Factors Affecting Electrical Resistance
When the same potential difference is applied across two separate wires, X and Y, the current in wire X is twice the current in wire Y. Which of the following could explain this observation?
A
Wire X has twice the length of Wire Y
B
Wire X has twice the temperature of Wire Y
C
Wire Y has twice the cross-sectional area of Wire X
D
Wire Y has twice the resistivity of Wire X
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