A long, thick wire of radius ha carries a current given by : Diagram I (t ) = at a where DO. a) Find B( mag + dir) in following regions I le i) rea ii) rza Answers may include : 10, a , t , a , r b) If a conducting coil w/ resistance R, radius b, and N # of turns is placed concentric & around the wire find mag of I ind in wil. Find E in loop. Answers may include: 1, a, t, a, r, b, N , R () If a conducting square coil of resistance R, side length I, & N # of turns is placed in the x2-plane and held a distance "X" from the edge of the wire, find mag of I ind in will ! Find E in loop. Answers may include: 10, a, t, a, x, 1, N, R2 ) CA col LC I ( Long ) Wires B + 2 are fixed in place, separated by a distance a = 50 um I each carry current I= 2 A. At what height lly" would a 3" wire have to be placed to hover in air ? ( Wire ( 3 ) must have an outward current I and mass per unit length. 0 70 kg/m