Two 0.68-m-long conducting rods are rotating at the same speed in opposite directions, and both are perpendicular
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Two 0.68-m-long conducting rods are rotating at the same speed in opposite directions, and both are perpendicular to a 4.7-T magnetic field. As the drawing shows, the ends of these rods come to within 1.0 mm of each other as they rotate. Moreover, the fixed ends about which the rods are rotating are connected by a wire, so these ends are at the same electric potential. If a potential difference of 4.5 × 103 V is required to cause a 1.0-mm spark in air, what is the angular speed (in rad/s) of the rods when a spark jumps across thegap?
Transcribed Image Text:
1.0-mm gap,-- B (into paper) Wire
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Consider one revolution of either rod The magnitude of the emf induc...View the full answer
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