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Figure (a) shows two wires, each carrying a current. Wire 1 consists of a circular arc of radius R = 0.017 m and two radial lengths; it carries current i₁ = 2.0 A in the direction indicated. Wire 2 is long and straight; it carries a current is that can be varied; and it is at distance R/2 from the center of the arc. The net magnetic field B due to the two currents is measured at the center of curvature of the arc. Figure (b) is a plot of the component of B in the direction perpendicular to the figure as a function of current i2. The horizontal scale is set by i2s = 1.0 A. What is the angle subtended by the arc? Number i 1.99 R 421 (a) Units rad 0 ią (A) (b) 12

Figure (a) shows two wires, each carrying a current. Wire 1 consists of a circular arc of radius R = 0.017 m and two radial lengths; it carries current i₁ = 2.0 A in the direction indicated. Wire 2 is long and straight; it carries a current is that can be varied; and it is at distance R/2 from the center of the arc. The net magnetic field B due to the two currents is measured at the center of curvature of the arc. Figure (b) is a plot of the component of B in the direction perpendicular to the figure as a function of current i2. The horizontal scale is set by i2s = 1.0 A. What is the angle subtended by the arc? Number i 1.99 R 421 (a) Units rad 0 ią (A) (b) 12

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Figure (a) shows two wires, each carrying a current. Wire 1 consists of a circular arc of radius R = 0.017 m and two radial lengths; it carries current i₁ = 2.0 A in the direction indicated. Wire 2 is long and straight; it carries a current is that can be varied; and it is at distance R/2 from the center of the arc. The net magnetic field B due to the two currents is measured at the center of curvature of the arc. Figure (b) is a plot of the component of B in the direction perpendicular to the figure as a function of current i2. The horizontal scale is set by i2s = 1.0 A. What is the angle subtended by the arc? Number i 1.99 421 (a) Units rad B V 0 ią (A) 125
Transcribed Image Text:Figure (a) shows two wires, each carrying a current. Wire 1 consists of a circular arc of radius R = 0.017 m and two radial lengths; it carries current i₁ = 2.0 A in the direction indicated. Wire 2 is long and straight; it carries a current is that can be varied; and it is at distance R/2 from the center of the arc. The net magnetic field B due to the two currents is measured at the center of curvature of the arc. Figure (b) is a plot of the component of B in the direction perpendicular to the figure as a function of current i2. The horizontal scale is set by i2s = 1.0 A. What is the angle subtended by the arc? Number i 1.99 421 (a) Units rad B V 0 ią (A) 125
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