Inducing Current from Magnetic Field

Inducing Current from Magnetic Field#

Use Lenz’s law to determine the direction of induced current in each case.

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Part 1#

Scenario (a) depicts a conducting rod moving with velocity \(\overrightarrow{ v }\) along parallel connected wires, creating a closed loop. What direction is the induced current in the loop?

Answer Section#

  • Counterclockwise.

  • Clockwise.

  • No current is induced.

Part 2#

Scenario (b) depicts a circular ring of wire moving with velocity \(\overrightarrow{ v }\). The plane of the ring of wire is parallel to a magnetic field. What direction is the induced current in the ring?

Answer Section#

  • Counterclockwise.

  • Clockwise

  • No current is induced.

Part 3#

Scenario (c) depicts a circular ring of wire moving with velocity \(\overrightarrow{ v }\). The plane of the ring of wire is perpendicular to a magnetic field. What direction is the induced current in the ring?

Answer Section#

  • Counterclockwise.

  • Clockwise.

  • No current is induced.

Part 4#

Scenario (d) depicts a conducting rod moving with velocity \(\overrightarrow{ v }\) along parallel connected wires, creating a closed loop. What direction is the induced current in the loop?

Answer Section#

  • Counterclockwise.

  • Clockwise.

  • No current is induced.

Part 5#

Scenario (e) depicts a circular ring of wire perpendicular to an increasing magnetic field directed out of the screen. What direction is the induced current in the ring?

Answer Section#

  • Counterclockwise.

  • Clockwise.

  • No current is induced.

Part 6#

Scenario (f) depicts a circular ring of wire parallel to a decreasing magnetic field directed out of the screen. What direction is the induced current in the ring?

Answer Section#

  • Counterclockwise.

  • Clockwise.

  • No current is induced.

Attribution#

Problem is from the OpenStax University Physics Volume 2 textbook, licensed under the CC-BY 4.0 license.
Image representing the Creative Commons 4.0 BY license.