Current flowing counter-clockwise around the loop generates a magentic field out of the page (the right-hand rule can be used to determine this - if you curl your fingers on your right hand in the direction of the current, your thumb points in the direction of the field produced by that current). Lenz's law says that if the magnetic flux through the loop is increasing into the page, the loop will set up a flux out of the page to try to cancel the change. The loop is moving into the field, which points into the page. (a) Which way will the induced current flow in the loop? An induced current of I = 0.043 amperes is flowing around the loop. ![]() ![]() The magnetic field is perpendicular to the plane of the loop and into the page as shown in the sketch. A square loop of wire with sides of length L = 0.17 m and total resistance R = 50 ohms is moving with constant velocity v into a region of constant magnetic field B = 0.76 T.
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