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#5, the answer is counterclockwise direction? #5. The direction of the magnetic force acting on the metal rail due to its current interacting with the external magnetic field

#5, the answer is counterclockwise direction? #5. The direction of the magnetic force acting on the metal rail due to its current interacting with the external magnetic field

Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter21: Current And Direct Current Circuits
Section: Chapter Questions
Problem 72P
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Can you explain to me why for #5, the answer is counterclockwise direction?

#5. The direction of the magnetic force acting on the metal rail due to its current interacting with the external magnetic field

#8 - A metal rail slides outwards on a U-shaped metal bar located within the x-y conducting bar plane. The rail is initially located a distance of y = 1 m from the back side of the bar and is traveling with a speed of v = Ay/At = 0.5 m/s. The bar has a width of L = 1m and a resistance of R = 3 Q. The rail and the bar are within a constant external magnetic field B = 7 T directed in the -z direction. Note that the enclosed area = A = В (L)(y), and AA = (L)(Ay). Enter the following quantities, one per line, in the same order given below. Numerical answers must also include appropriate units. L 1. The numerical value (with units) of the initial magnetic flux through the enclosed area (when y = 1 m) 2. The direction of the induced EMF 3. The numerical value (with units) of the induced EMF 4. The numerical value (with units) of the current induced in the ring 5. The direction of the magnetic force acting on the metal rail due to its current interacting with the external magnetic field
Transcribed Image Text:#8 - A metal rail slides outwards on a U-shaped metal bar located within the x-y conducting bar plane. The rail is initially located a distance of y = 1 m from the back side of the bar and is traveling with a speed of v = Ay/At = 0.5 m/s. The bar has a width of L = 1m and a resistance of R = 3 Q. The rail and the bar are within a constant external magnetic field B = 7 T directed in the -z direction. Note that the enclosed area = A = В (L)(y), and AA = (L)(Ay). Enter the following quantities, one per line, in the same order given below. Numerical answers must also include appropriate units. L 1. The numerical value (with units) of the initial magnetic flux through the enclosed area (when y = 1 m) 2. The direction of the induced EMF 3. The numerical value (with units) of the induced EMF 4. The numerical value (with units) of the current induced in the ring 5. The direction of the magnetic force acting on the metal rail due to its current interacting with the external magnetic field
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