Answer
1.18 T
Work Step by Step
See Figure 20-34b. The angle between the perpendicular to the loop, and the magnetic field, is 90 degrees. Use equation 20–10 to find the magnetic field strength.
$$\tau=NIABsin\theta$$
$$B=\frac{\tau}{NIAsin\theta}$$
$$B=\frac{0.325 m\cdot N}{(1)(5.70A)(0.220m)^2sin90^{\circ}}$$
$$B=1.18T$$
