Question: A single square loop of wire 24.5 cm on a side is placed with its face parallel to the magnetic field as in (Figure 1).

A single square loop of wire 24.5 cm on a side is placed with its face parallel to the magnetic field as in (Figure 1). When I = 4.50 A flows in the coil, the torque on it is 0.310 mN .

What is the magnetic field strength?

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