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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Question
In the questions below there are 6 induction processes. The circle with the dot denotes a magnetic field pointing out of and the circle with the x denotes a magnetic field pointing into the screen. A line represents a conductor, while a bar denotes a sliding conductor. An arrow labeled “v” indicates the direction in which the conductor or sliding conductor is moving.
Use Lenz’s law to determine which of induced currents have a counterclockwise direction. Choose all that apply.
Transcribed Image Text:### Electromagnetic Induction Diagrams
The image consists of six diagrams labeled (a) to (f), illustrating different scenarios of electromagnetic induction.
#### (a) and (b)
- **Diagram (a)**: Shows a loop of wire moving into a region with a magnetic field perpendicular to the plane of the loop. The magnetic field is represented by blue circles with crosses, indicating the field is directed into the page. The loop is moving to the right.
- **Diagram (b)**: Depicts the induced current in the loop when the loop is entirely within the magnetic field. The current is shown as a circular motion around the loop, with a velocity \( v \) pointing to the right.
#### (c) and (d)
- **Diagram (c)**: Illustrates a circular loop of wires with a magnetic field (represented by crossed circles) pointing into the page. The loop is moving downward with velocity \( v \). The diagram emphasizes the interaction between the motion of the loop and the magnetic field.
- **Diagram (d)**: Displays a straight wire entering a region with a perpendicular magnetic field. The magnetic field is represented by multiple lines perpendicular to the wire. The wire moves to the right with velocity \( v \), illustrating the force experienced by the electrons in the wire.
#### (e) and (f)
- **Diagram (e)**: Shows a loop with an increasing magnetic field directed out of the page, denoted by circles with dots. The change in the magnetic field is increasing (\( B \) increasing), which induces a current in the loop.
- **Diagram (f)**: Represents a situation where the magnetic field (\( B \)) is decreasing, denoted by crosses turning into dots. The induced current in response to the decreasing field is indicated by an oval around the loop.
These diagrams are valuable for understanding Faraday's Law of Electromagnetic Induction, demonstrating how changing magnetic fields can induce electrical currents in conductive loops or wires. Understanding these principles is essential for interpreting the behavior of electric generators, transformers, and various electromagnetic technologies.
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