Lecture10_SP08 - length but different radii They are joined...

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Topics to be covered in class: Connecting resistors in parallel and series Review: upcoming mid-term
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A certain wire has resistance R. Another wire, of the same material, has half the length and half the diameter of the first wire. The resistance of the second wire is: A) R/4 B) R/2 C) R D) 2R E) 4R
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Two wires are made of the same material and have the same
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Unformatted text preview: 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) none of the above...
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Lecture10_SP08 - length but different radii They are joined...

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