Wire A,which Is of the Same Material and Cross-Sectional Area

question 37

Multiple Choice

Wire A,which is of the same material and cross-sectional area as wire B,is twice as long as wire B.If the resistance of wire B is R,what is the resistance of wire A?

• A)R
• B)2R
• C)R/2
• D)4R
• E)R/4

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