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4. There is a counterclockwise current / in a circular loop of wire situated in an external magnetic field directed out of the page as shown below. The effect of the forces that act on this current is to make the loop (A) expand in size (B) contract in size (C) rotate about an axis perpendicular to the page (D) rotate about an axis in the plane of the page (E) accelerate into the page 5. Which of the paths below represents the path of an electron traveling without any loss of energy through a uniform magnetic field directed into the page? х х х х в (A) A (B) B (C) C (D)D (E) E х х х х х Magnetic Field х х 7. A metal spring has its ends attached so that it forms a circle. It is placed in a uniform magnetic field, as shown below. Which of the following will NOT cause a current to be induced in the spring? (A) Changing the magnitude of the magnetic field (B) Increasing the diameter of the circle by stretching the spring (C) Rotating the spring about a diameter х х х х х х (D) Moving the spring parallel to the magnetic field (E) Moving the spring in and out of the magnetic field Spring х х х 8. A single circular loop of wire in the plane of the page is perpendicular to a uniform magnetic field B directed out of the page, as shown below. If the magnitude of the magnetic field is decreasing, then the induced current in the wire is (A) directed upward out of the paper (B) directed downward into the paper (C) clockwise around the loop (D) counterclockwise around the loop (E) zero (no current is induced)

4. There is a counterclockwise current / in a circular loop of wire situated in an external magnetic field directed out of the page as shown below. The effect of the forces that act on this current is to make the loop (A) expand in size (B) contract in size (C) rotate about an axis perpendicular to the page (D) rotate about an axis in the plane of the page (E) accelerate into the page 5. Which of the paths below represents the path of an electron traveling without any loss of energy through a uniform magnetic field directed into the page? х х х х в (A) A (B) B (C) C (D)D (E) E х х х х х Magnetic Field х х 7. A metal spring has its ends attached so that it forms a circle. It is placed in a uniform magnetic field, as shown below. Which of the following will NOT cause a current to be induced in the spring? (A) Changing the magnitude of the magnetic field (B) Increasing the diameter of the circle by stretching the spring (C) Rotating the spring about a diameter х х х х х х (D) Moving the spring parallel to the magnetic field (E) Moving the spring in and out of the magnetic field Spring х х х 8. A single circular loop of wire in the plane of the page is perpendicular to a uniform magnetic field B directed out of the page, as shown below. If the magnitude of the magnetic field is decreasing, then the induced current in the wire is (A) directed upward out of the paper (B) directed downward into the paper (C) clockwise around the loop (D) counterclockwise around the loop (E) zero (no current is induced)

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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4. There is a counterclockwise current / in a circular loop of wire situated in an external magnetic field directed out of the page as shown below. The effect of the forces that act on this current is to make the loop (A) expand in size (B) contract in size (C) rotate about an axis perpendicular to the page (D) rotate about an axis in the plane of the page (E) accelerate into the page 5. Which of the paths below represents the path of an electron traveling without any loss of energy through a uniform magnetic field directed into the page? х х х х в (A) A (B) B (C) C (D)D (E) E х х х х х Magnetic Field х х
Transcribed Image Text:4. There is a counterclockwise current / in a circular loop of wire situated in an external magnetic field directed out of the page as shown below. The effect of the forces that act on this current is to make the loop (A) expand in size (B) contract in size (C) rotate about an axis perpendicular to the page (D) rotate about an axis in the plane of the page (E) accelerate into the page 5. Which of the paths below represents the path of an electron traveling without any loss of energy through a uniform magnetic field directed into the page? х х х х в (A) A (B) B (C) C (D)D (E) E х х х х х Magnetic Field х х
7. A metal spring has its ends attached so that it forms a circle. It is placed in a uniform magnetic field, as shown below. Which of the following will NOT cause a current to be induced in the spring? (A) Changing the magnitude of the magnetic field (B) Increasing the diameter of the circle by stretching the spring (C) Rotating the spring about a diameter х х х х х х (D) Moving the spring parallel to the magnetic field (E) Moving the spring in and out of the magnetic field Spring х х х 8. A single circular loop of wire in the plane of the page is perpendicular to a uniform magnetic field B directed out of the page, as shown below. If the magnitude of the magnetic field is decreasing, then the induced current in the wire is (A) directed upward out of the paper (B) directed downward into the paper (C) clockwise around the loop (D) counterclockwise around the loop (E) zero (no current is induced)
Transcribed Image Text:7. A metal spring has its ends attached so that it forms a circle. It is placed in a uniform magnetic field, as shown below. Which of the following will NOT cause a current to be induced in the spring? (A) Changing the magnitude of the magnetic field (B) Increasing the diameter of the circle by stretching the spring (C) Rotating the spring about a diameter х х х х х х (D) Moving the spring parallel to the magnetic field (E) Moving the spring in and out of the magnetic field Spring х х х 8. A single circular loop of wire in the plane of the page is perpendicular to a uniform magnetic field B directed out of the page, as shown below. If the magnitude of the magnetic field is decreasing, then the induced current in the wire is (A) directed upward out of the paper (B) directed downward into the paper (C) clockwise around the loop (D) counterclockwise around the loop (E) zero (no current is induced)
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