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    Physics & Astronomy
  3. Study Set
    Principles of Physics
  4. Exam
    Exam 10: Current and Resistance
  5. Question
    A Certain Wire Has Resistance R
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A Certain Wire Has Resistance R

Question 2

Question 2

Multiple Choice

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

Correct Answer:

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