Five cylindrical wires are made of the same material.Their lengths and radii are
Wire 1: length radius r
Wire 2: lenth radius r/2
Wire 3: length radius r/2
Wire 4: length radius r/2
Wire 5: length radius r/2
Rank the wires according to their resistances, least to greatest.
A) 1, 2, 3, 4, 5
B) 5, 4, 3, 2, 1
C) 1 and 2 tie, then 5, 3, 4
D) 1, 3, 4, 2, 5
E) 1, 2, 4, 3, 5

Question

Five cylindrical wires are made of the same material.Their lengths and radii are
Wire 1: length  radius r
Wire 2: lenth  radius r/2
Wire 3: length  radius r/2
Wire 4: length  radius r/2
Wire 5: length  radius r/2
Rank the wires according to their resistances, least to greatest.
A) 1, 2, 3, 4, 5 
B) 5, 4, 3, 2, 1 
C) 1 and 2 tie, then 5, 3, 4 
D) 1, 3, 4, 2, 5 
E) 1, 2, 4, 3, 5

Quizplus · Accepted Answer

The Answer is C

Five Cylindrical Wires Are Made of the Same Material