1. The problem statement, all variables and given/known data A portion of Nichrome wire of radius 2.50 mm is to be used in winding a heating coil. If the coil must draw a current of 9.25 A when a voltage of 120 V is applied across its ends, find (a) the required resistance of the coil and (b) the length of wire you must use to wind the coil. 2. Relevant equations RI = V R = I/oA 3. The attempt at a solution (a) RI = V R = V/I = 120V/9.25A = 12.973Ohms (b) R = l/oA l = RoA = (12.973Ohms)(.000001ohms*m)(.0025m*3.14*2) = 2.036761e-7m The answer to the second part of the equation is 255m and I can't figure out what I did wrong... Thanks!