Part A
Determine the ratio of the resistances of two wires that are identical except that wire A is twice as long as wire B.
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RARB = |
Part B
Determine the ratio of the resistances of two wires that are identical except that wire A has twice the radius of wire B.
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RARB = |
Part C
Determine the ratio of the resistances of two wires that are identical except that wire A is made of copper and wire B is made of aluminum. The resistivity of aluminum is 2.8 ×10−8Ω⋅m, the resistivity of copper is 1.7 ×10−8Ω⋅m.
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RARB = |
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