Question

A long straight wire carries a steady current I. A rectangular conducting loop lies in the same plane as the wire, with two sides parallel to the wire and two sides perpendicular. Suppose the loop is pushed toward the wire as shown in the figure. Given the direction of I is towards the right, the direction of the magnetic field B_lsw due to the current I at the location of the loop is . The magnetic field from the wire B_lsw is closer to the wire, so as we move the loop towards the wire, the magnetic flux passing through the loop . This means that the induced magnetic field B_ind is the magnetic field B_lsw from the wire at the location of the loop. Thus, the induced magnetic field is and by the Right Hand Rule, the induced current I_ind is

          A long straight wire carries a steady current I. A rectangular conducting loop lies in the same plane as the wire, with two sides parallel to the wire and two sides perpendicular. Suppose the loop is pushed toward the wire as shown in the figure.
Given the direction of I is towards the right, the direction of the magnetic field B_lsw due to the current I at the location of the loop is . The magnetic field from the wire B_lsw is closer to the wire, so as we move the loop towards the wire, the magnetic flux passing through the loop . This means that the induced magnetic field B_ind is the magnetic field B_lsw from the wire at the location of the loop. Thus, the induced magnetic field is and by the Right Hand Rule, the induced current I_ind is

A long straight wire carries a steady current I. A rectangular conducting loop lies in the same plane as the wire, with two sides parallel to the wire and two sides perpendicular. Suppose the loop is pushed toward the wire as shown in the figure.
Given the direction of I is towards the right, the direction of the magnetic field Blsw due to the current I at the location of the loop is . The magnetic field from the wire Blsw is closer to the wire, so as we move the loop towards the wire, the magnetic flux passing through the loop . This means that the induced magnetic field Bind is the magnetic field Blsw from the wire at the location of the loop. Thus, the induced magnetic field is and by the Right Hand Rule, the induced current Iind is

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