rectangular_current_loop - Rectangular Current Loop Given:...

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Rectangular Current Loop Given: F i n d : cm a 5 . 0 ? z cm b 9 . 0 ? 50 U ? A i 9 . 2 W T B 005 . 0 ? 50 A rectangular loop of sides a = 0.5 cm and b = 0.9 cm pivots without friction about a fixed axis ( z - axis) that coincides with its left end (see figure). The net current in the loop is I = 2.9 A. A spatially uniform magnetic field with B = 0.005 T points in the + y -direction. The loop initially makes an angle = 50° with respect to the x - z plane. (a) Calculate the z -component of the torque on the loop in its initial configuration ( = 50°). (b) Calculate the potential energy of the loop at the orientation = 50°. (c) How much work would an external agent have to do to rotate the plane of the loop from = 50° to = 0°. (d) The moment of inertia of the loop about its axis of rotation (left end) is J = 2.4 × 10 -6 kg m 2 . If the loop is released from rest at = 50°, calculate its angular velocity at = 0°. Solutions
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This note was uploaded on 01/26/2012 for the course PHYSICS 211 taught by Professor Selig during the Fall '10 term at University of Illinois, Urbana Champaign.

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rectangular_current_loop - Rectangular Current Loop Given:...

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