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A circuit consists of a conducting movable bar and a lightbulb connected to two conducting rails as shown in the figure below. An external magnetic field is directed perpendicular to the plane of the circuit. Which of the following actions will make the bulb light up? (Select all that apply.) The bar is moved to the left. The bar is moved to the right. The magnitude of the magnetic field is increased. The magnitude of the magnetic field is decreased. The bar is lifted off the rails.

A circuit consists of a conducting movable bar and a lightbulb connected to two conducting rails as shown in the figure below. An external magnetic field is directed perpendicular to the plane of the circuit. Which of the following actions will make the bulb light up? (Select all that apply.) The bar is moved to the left. The bar is moved to the right. The magnitude of the magnetic field is increased. The magnitude of the magnetic field is decreased. The bar is lifted off the rails.

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
Chapter1: Introduction And Vectors
Section: Chapter Questions
Problem 2CQ
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A circuit consists of a conducting movable bar and a lightbulb connected to two conducting rails as shown in the figure below. An external magnetic field is directed perpendicular to the plane of the circuit. Which of the following actions will make the bulb light up? (Select all that apply.)

  • The bar is moved to the left.
  • The bar is moved to the right.
  • The magnitude of the magnetic field is increased.
  • The magnitude of the magnetic field is decreased.
  • The bar is lifted off the rails.
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