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3. A metal rod of length 2 slides without friction down two wires as in Figure 18.1? A uniform magnetic field of magnitude 3 points
3. A metal rod of length 2 slides without friction down two wires as in Figure 18.1? A uniform magnetic field of magnitude 3 points out of the page. Express your answers to the following questions in terms of the velocity of the bar 12, the magnetic field B, gravitational acceleration g, the mass of the bar m, the resistance R, and the length of the rod E. Ft -W\\N\\/\ It _. f l e G)
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