NDA2012General AbilityGeneral ScienceActual
Two metallic wires A and B are of same material and have equal length. If the cross-sectional area of B is double that of A , then which one among the following is the electrical resistance of B ?
Options
- ATwice that of A
- B4 times that of A
- C1 4 that of A
- D1 2 that of A
Correct answer
D. 1 2 that of A
Step-by-step solution
The correct answer is option D.