1. The problem statement, all variables and given/known data A wire has a resistance of 0.010 ohms. What will the wire's resistance be if it is stretched to twice its original length without changing the volume? 2. Relevant equations R = pL/A 3. The attempt at a solution R = p(2L)/A pL/A = R/2 =0.010/2 =0.0050 ohms I think I this is wrong. Can anybody let me know? And, if so, can you please steer me in the right direction?