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Figure 29.17 shows a conducting disk with radius R that lies in the xy-plane and rotates with constant angular velocity ω about the z-axis. The disk is in a uniform, constant B field in the z-direction. Find the induced emf between the center and the rim of the disk.

Figure 29.17 shows a conducting disk with radius R that lies in the xy-plane and rotates with constant angular velocity ω about the z-axis. The disk is in a uniform, constant B field in the z-direction. Find the induced emf between the center and the rim of the disk.

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Figure 29.17 shows a conducting disk with radius R that lies in the xy-plane and rotates with constant angular velocity ω about the z-axis. The disk is in a uniform, constant B field in the z-direction. Find the induced emf between the center and the rim of the disk.
LET'S SOLVE ! THE FARADAY DISK DYNAMO Figure 29.17 shows a conducting disk with radius R that lies in the xy-plane and rotates with constant angular velocity w about the z-axis. The disk is in a uniform, constant B field in the z-direction. Find the induced emf between the center and the rim of the disk. ....Young and Freedman Textbook CONCEPTUAL QUESTION In a Faraday Disk Dynamo, -The magnetic field B is constant -The Area A of the disk also seems to be constant - The angle =0 since the disk only rotates about it's axis If neither B, A or is changing, then what causes the induced EMF?!! Is this a Faraday's Electromagnetic Paradox? B B R B 6 dr B Speed of small radial segment of length dr at radius ris v = wr. Emf induced across this segment is dƐ=vB dr = wBr dr.
Transcribed Image Text:LET'S SOLVE ! THE FARADAY DISK DYNAMO Figure 29.17 shows a conducting disk with radius R that lies in the xy-plane and rotates with constant angular velocity w about the z-axis. The disk is in a uniform, constant B field in the z-direction. Find the induced emf between the center and the rim of the disk. ....Young and Freedman Textbook CONCEPTUAL QUESTION In a Faraday Disk Dynamo, -The magnetic field B is constant -The Area A of the disk also seems to be constant - The angle =0 since the disk only rotates about it's axis If neither B, A or is changing, then what causes the induced EMF?!! Is this a Faraday's Electromagnetic Paradox? B B R B 6 dr B Speed of small radial segment of length dr at radius ris v = wr. Emf induced across this segment is dƐ=vB dr = wBr dr.
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