PH-1079
Resistance
Physics · Secondary 4 · Medium · Resistance
A metal wire of length 0.80 m has a resistance of 5.0 Ω. A second wire of the same material has twice the length and half the diameter of the first wire.
What is the resistance of the second wire?
What is the resistance of the second wire?
- 10 Ω
- 20 Ω
- 40 Ω
- 80 Ω
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