Question text
28 A wire of length 0.50m and cross-sectional area 1.0 × 10–6m2 has a resistance of 0.75Ω. Another wire of the same material has a length of 2.0m and a cross-sectional area of 0.50 × 10–6m2. What is the resistance of the longer wire? A 0.094Ω B 0.38Ω C 1.5Ω D 6.0Ω
28 A wire of length 0.50m and cross-sectional area 1.0 × 10–6m2 has a resistance of 0.75Ω.
Another wire of the same material has a length of 2.0m and a cross-sectional area of
0.50 × 10–6m2.
What is the resistance of the longer wire?
A 0.094Ω B 0.38Ω C 1.5Ω D 6.0Ω
Select your answer: