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Unformatted text preview: 1 3. A cube, 0.50 m on a side, is placed in a uniform magnetic field of strength 0.45 T oriented in the direction of a diagonal of the front face of the cube. Find the magnetic flux through each of the faces of the cube. What is the total magnetic flux through the cube? The flux through an area is given by equation (22.2). For the front face : 1 = BL 2 cos 90 = 0 Wb. back face : 2 = BL 2 cos 90 = 0 Wb . top face : 3 = BL 2 cos 135 = 0.080 Wb . bottom face : 4 = BL 2 cos 45 = 0.080 Wb . right face : 5 = BL 2 cos 135 =  0.080 Wb . left face : 6 = BL 2 cos 45 = 0.080 Wb . The total flux through the cube is the sum of the fluxes through the faces, so = 0 Wb . 2 4. The speed sensor for an automotive cruise control consists of a magnet mounted on the drive shaft along with a coil of wire mounted on the chassis. As the magnet passes the coil, an emf is induced for a short period of time. The number of induced emfs occurring per second allows a computer to determine the drive shaft speed and time....
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 Winter '08
 Loughlin

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