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Experiments​

Electromagnets

Experiment #28 from Middle School Science with Vernier

Education Level
Middle School

Introduction

A magnetic field forms around a wire that has an electric current in it. Winding a wire around a piece of iron increases the strength of the magnetic field. A temporary magnet made in this way is called an electromagnet. In this experiment, you will use a Magnetic Field Sensor to study the relationship between number of wire winds and magnetic field strength of an electromagnet.

Objectives

In this experiment, you will

  • Build an electromagnet.
  • Measure magnetic field strength.
  • Make conclusions about the relationship between number of wire winds and magnetic field strength.

Sensors and Equipment

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

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Purchase the Lab Book

This experiment is #28 of Middle School Science with Vernier. 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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