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Experiments​

Faraday’s Law: Moving Magnet

Experiment #11 from Advanced Physics with Vernier — Beyond Mechanics

Education Level
High School
College
Subject
Physics

Introduction

You have learned that magnetic flux is the dot product of the magnetic field vector, B, and the area vector, A, for a closed loop, \Phi = \vec{B} \cdot \vec{A}. In this experiment, you will investigate how changes in the flux from a changing magnetic field affect the behavior of the mobile charge carriers in a conducting loop.

Objectives

In this experiment, you will

  • Fashion a simple coil to collect data.
  • Collect potential vs. time data for a magnet moving through a coil.
  • Account for features of the observed graph of potential vs. time.
  • Relate the induced emf to changes in the magnetic flux passing through a coil.

Sensors and Equipment

This experiment features the following sensors and equipment. Additional equipment may be required.

Option 1

Go Direct® Voltage Probe

Option 2

Instrumentation Amplifier

Correlations

Teaching to an educational standard? This experiment supports the standards below.

International Baccalaureate (IB)/Physics
11.1 Electromagnetic induction

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Purchase the Lab Book

This experiment is #11 of Advanced Physics with Vernier — Beyond Mechanics. The experiment in the book includes student instructions as well as instructor information for set up, helpful hints, and sample graphs and data.

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