PH-1094
Resistance
Physics · Secondary 4 · Easy · Resistance
A 3.0 m long wire of resistance 9.0 is made of a certain metal. Another wire of the same metal has the same length but twice the diameter.
What is the resistance of the thicker wire?
What is the resistance of the thicker wire?
- 1.5
- 2.25
- 4.5
- 18
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