# hw8.5 - HW8.5 a 2cm Given Find i1 b 11cm i2 v 20m s i3 R 30...

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HW8.5 Given: Find: cm a 2 ? 1 i cm b 11 ? 2 i ? 3 s m v / 20 i 30 R T B 9 . 1 cm d 25 A one-turn rectangular loop oriented parallel to the x - y plane and having dimensions a = 2 cm, b = 11 cm moves with a constant velocity v = 20 m/s in the + x direction. An external agent (force) ensures that this velocity remains constant throughout the motion. The wire of which the loop is made has negligible resistance. A resistor R = 30 (not shown) is connected in the upper side of the loop. At some point, the loop enters a region of constant, spatially uniform magnetic field B = 1.9 T pointing in the - z direction (into the page). The magnetic field covers a region of "thickness" d = 25 cm in the x -direction. The figure above shows three configurations: (1) loop entering and half way into the field region; (2) loop entirely within the field region; and (3) loop emerging from the field region and three-fourths of the way out.

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