1. In the figure of coil and magnet, explain how the meter moves in terms of induced current, as the magnet is pushed into the coil, stopped and then pulled out of the coil in the opposite direction. IN s00000000 N
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![1. In the figure of coil and magnet, explain how the meter moves in terms of induced current, as the
magnet is pushed into the coil, stopped and then pulled out of the coil in the opposite direction.
N.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3a050f58-3c18-44b0-9763-4c7e08a890f5%2Fd1507de0-8929-45bb-88d2-ad8927e99830%2F1o2o1fd_processed.jpeg&w=3840&q=75)
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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…2. Suppose that a rectangular toroid has 2000 windings, h = 1 cm, an inner radius of R1 = 4 cm, and an outer radius of R2 = 6 cm. What is the current flowing through the toroid when the energy in its magnetic field is 2.0 x 10-6 J?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
- 2. The figure below shows a 99-turn square coil rotating about a vertical axis at at ? = 1,520 rev/min. The length of a side of the coil is 20.0 cm. The horizontal component of the Earth's magnetic field at the coil's location is equal to 2.00 ✕ 10−5 T. a) What is the magnitude of the maximum emf (in mV) induced in the coil by the Earth's magnetic field? mV b) What is the orientation of the coil with respect to the magnetic field when the maximum emf occurs? The plane of the coil is oriented 45° with respect to the magnetic field. The plane of the coil is perpendicular to the magnetic field. The plane of the coil is parallel to the magnetic field.1. Two solenoids have the same number of turns per unit length, n, and same current i flowing through them. The diameter of coil (a) is twice that of coil (b). If which coil is the magnetic field strength bigger? O A OB A. Coil (a) B. Coil (b) C. The magnetic field is the same in both. D. Not enough information O C ANNAMAANA wwwwwwwwwww. No, that's not the correct answer. (a) X (b)Which way will the coil rotate when released? a.) Clockwise b.) Anticlockwise 60° B = 0.40 T 30 m
- 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? THK ε 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. f. What is the direction of the induced current in the 2nd coil if the voltage of the power supply for the first coil…6. For each situation, circle the best choice. a. A current carrying wire is pulled away from a conducting loop as shown. Which way will an induced current flow in the conducting loop? I- Clockwise in the loop, Counterclockwise in the loop, There is no induced current, More information is needed b. A metal bar completes a circuit as in moving upwards in a magnetic field as drawn. Which way will an induced current flow in the loop? Clockwise in the loop, Counterclockwise in the loop, There is no induced current, More information is needed