Question

Consider two copper wires with the same cross-sectional area. Wire A is twice as long as wire B. How do the resistivities and resistances of the two wires compare?

CHECK ALL THAT APPLY

Wire A and wire B have the same resistance.
Wire A has twice the resistivity of wire B.
Wire B has twice the resistance of wire A.
Wire A has twice the resistance of wire B.
Wire A and wire B have the same resistivity.
Wire B has twice the resistivity of wire A.

Answer 1

1. False.
2. False.
3. False.
4. True.
5. True.
6. False.

Note: The resistivity 0f both wires is the same, because they are made of the
same material(copper).

Answer 2

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