PhysicsMediumHigh School (11–12)Electricity & Magnetism › Magnetic Effects of CurrentBoard ExamAPA-LevelIB
Created by StemPy LabA straight vertical rod in the plane of the page moves to the right. A uniform magnetic field points into the page. Which end of the rod becomes positive?
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← A carriage has a metal axle 1.6 m long, and the carriage moves at 22 m/s on level rails. The vertical part of the field of the Earth is 5.2 × 10⁻⁵ T. What is the emf between the ends of the axle?A rod 0.29 m long slides at 6.5 m/s along rails in a field of 0.37 T. The circuit has a resistance of 0.55 Ω. How much power must be supplied to keep the speed steady? →
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