Two wires, X and Y are made of the same metal and are at the same temperature.
Question:
Two wires, X and Y are made of the same metal and are at the same temperature. Y is twice as long as X and has twice the cross-sectional area.
Which of the following is correct?
A. X and Y have the same resistance.
B. X has half the resistance of Y.
C. X has double the resistance of Y.
D. X has four times the resistance of Y.
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ANSWER Option A The resistance R of a wire is related to its physical dimensions an...View the full answer
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Classical Mechanic
Electromagnetism
Optical
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