The resistance of the metal bar with a weight of 3 N and a length of 1.5 m is 10 Ω. The metal rod can move freely on the wires. The magnitude of the magnetic field in the region where the bar is located is 1.6 T and it is in the same plane and right to the circuit. Immediately after the key is closed; a) What is the acceleration of the rod? b) In which direction does the bar move?

Principles of Physics: A Calculus-Based Text
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Chapter22: Magnetic Forces And Magnetic Fields
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The resistance of the metal bar with a weight of 3 N and a length of 1.5 m is 10 Ω. The metal rod can move freely on the wires. The magnitude of the magnetic field in the region where the bar is located is 1.6 T and it is in the same plane and right to the circuit. Immediately after the key is closed;

a) What is the acceleration of the rod?

b) In which direction does the bar move?

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