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    Physics & Astronomy
  3. Study Set
    University Physics with Modern Physics Study Set 1
  4. Exam
    Exam 25: Current,resistance,and Electromotive Force
  5. Question
    A Cylindrical Wire Has a Resistance R and Resistivity ρ
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A Cylindrical Wire Has a Resistance R and Resistivity ρ

Question 23

Question 23

Matching

A cylindrical wire has a resistance R and resistivity ρ.If its length and diameter are BOTH cut in half

Premises:
Responses:
what will be its resistance?
2R
4R
R/4
R
R/2
Premises:
what will be its resistance?
Responses:
2R
4R
R/4
R
R/2

Correct Answer:

Premises:
Responses:
2R
4R
R/4
R
R/2
Premises:
2R
4R
R/4
R
R/2
Responses:
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