Walker, Halliday & Resnick — Induction and Inductance: Problem 40

40 In Fig. 30-37, a rectangular loop of wire with length \(a = 2.2 \text{ cm}\), width \(b = 0.80 \text{ cm}\), and resistance \(R = 0.40 \text{ m}\Omega\) is placed near an infinitely long wire carrying current \(i = 6.9 \text{ A}\). The loop is then moved away from the wire at constant speed \(v = 3.2 \text{ mm/s}\). When the center of the loop is at distance \(r = 1.5b\), what are (a) the magnitude of the magnetic flux through the loop and (b) the current induced in the loop?