Two coplanar and concentriccircular loops of wire
Chapter , Problem 65(choose chapter or problem)
Two coplanar and concentriccircular loops of wire carrycurrents of I1 5 5.00 A andI2 5 3.00 A in opposite directionsas in Figure P19.65. (a) Ifr1 5 12.0 cm and r2 5 9.00 cm,what are (a) the magnitudeand (b) the direction of thenet magnetic field at the centerof the two loops? (c) Let r1 remain fixed at 12.0 cmand let r2 be a variable. Determine the value of r2 suchthat the net field at the center of the loop is zero.
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