Two Wires Are Made of the Same Material and Have

question 39

Multiple Choice

Two wires are made of the same material and have the same length but different radii.They are joined end-to-end and a potential difference is maintained across the combination.Of the following the quantity that is the same for both wires is:

• A)potential difference
• B)current
• C)current density
• D)electric field
• E)conduction electron drift speed

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