What would increase the resistance of a copper wire? A. decreasing the wire’s thickness B. decreasing the wire’s temperature C. decreasing the wire’s length
Physics
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Question
What would increase the resistance of a copper wire?
A. decreasing the wire’s thickness
B. decreasing the wire’s temperature
C. decreasing the wire’s length
A. decreasing the wire’s thickness
B. decreasing the wire’s temperature
C. decreasing the wire’s length
1 Answer

1. User Answers olemakpadu
R = ρl/A
From the equation above R = Resistance, l = length, A = Cross Sectional Area of wire.
From the equation, it can be seen that R would increase if the wire's area is reduced.
If the area of the wire is reduced, means the same thing as:
A. decreasing the wire’s thickness