Two Copper Wires,one Double the Diameter of the Other,have the Same

question 29

Multiple Choice

Two copper wires,one double the diameter of the other,have the same current flowing through them.If the thinner wire has a drift velocity v₁,and the thicker wire has a drift velocity v₂,how do the drift velocities of the charge carriers compare?

• A) v₁ = v₂
• B) v₁ = 2 v₂
• C) 2 v₁ = v₂
• D) v₁ = 4 v₂
• E) 4 v₁ = v₂

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