8. In the diagram, a bar magnet is pushed towards a coil. The poles of the induced field in the coil are shown. Which pole is at the LEFT of the permanent bar magnet? Explain your choice using the electromagnetic theories. pig t
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- 3. Induced Forces: Two conducting coils are arranged parallel to each other. The first coil is connected to a power supply so that the current is in at the top and out at the bottom. The voltage on the power supply is being decreased. a. What is the direction (left/right/zero) of the magnetic field (due to the first coil) as it goes through the 2nd coil? b. Is the magnetic flux increasing or decreasing? C. What is the direction of the induced magnetic field through the 2nd coil required to resist the change in magnetic flux? f. g. d. What is the direction (in at top/out at bottom or out at top/in at bottom) of the induced current in the 2nd coil required to produce the induced field needed? e. What is true of the magnetic force between the two coils? The coils will attract each other. The coils will repel each other. There is no magnetic force between the coils. What is the direction of the induced current in the 2nd coil if the voltage of the power supply for the first coil is…The answers are provided but how would you solve this? Please help!PART A: Consider a bar magnet sitting to the left of a coil. if the N pole is closest to the coil, what direction does the magnetic field point at the coil's location? A. Toward the Right B. Toward the Left C. depends on the direction of the coils D. not enough information to tell PART B: If a bar magnet is sitting to the left of a coil with its N pole closest to the coil, and the magnet moves toward the coil, the strength of the magnetic field at the location of the coil gets a) weaker b) stays the same c) stronger d) there is no way to tell PART C: As a magnet moves toward a set of coils, the larger the number of coils per meter, the larger the induced current. a) True b) False
- You pull a bar magnet out of coil of wire. What are the directions of the induced current and magnetic field? Draw a sketch of the situation, noting whether your answer would change if the magnet’s south pole left the wire instead of the north pole.19. If I'm rotating a loop of wire over a magnetic field, such that is the angle between the B-field and the area vec- tor of the loop, at which point is the magnitude of the induce potential difference across the loop maximized? The image shows the loop rotating so the area vector on the right is represented as the circle-dot coming towards you. is expressed in radians. A. B. C. D. when 0 = T when 0 플 when 0 4 The current is always the same A 102 O A 102Dřaw the magnetic field, using arrows to indicate the direction of the mågnetic field. maignetie trerd. 8. to Dual Loop 19 Solenoid 9. Using your knowledge of magnetism and the right hand rule, determine whether the solenoids (coils) will attract or repel each other. Be sure to draw in the field lines and label the North and South poles. Diagram 1 Diagram 2 2020-03-25 Page 3 of 16