Direction of a magnetic field of a coil with Cobra SMARTsense

Principle

The magnetic field is directed. There's a north and south pole. The field from the north to the south pole is defined as positive and from the south to the north pole as negative. As an example of use, a compass can be mentioned here, which serves our navigation. Understanding the magnetic field direction of the coil is the basis for many other experiments such as the electric motor or the electric generator.

Benefits

• Especially understandable and didactically prepared description of the experiment (relevance to everyday life, etc.) including protocol questions.
• Future-oriented teaching: Integration into digital science lessons with tablets or smartphones.
• Increased motivation of students by using the intuitive measureAPP.
• Increased media competence.

Tasks

1. measuring the magnetic field of a permanent magnet.
2. measuring the magnetic field of a coil.
3. measuring the magnetic field of a reversed polarity coil.

Learning Objectives

In this experiment the magnetic field direction of a permanent magnet and a coil is to be investigated. The magnetic field of the coil and the permanent magnet can be compared. The polarity of the coil is decisive for the magnetic field direction of the coil.