A field changes the nature of the space surround the thing producing the field. A magnet produces a magnetic field which changes the nature of the space around it so that other magnets and magnetic objects are now influenced by it. Some magnetic fields (and other fields) are stronger than others, and now we’re going to learn how to measure the field strength of electric fields.

The electric field is a vector (it has magnitude and direction), and this is how you do it:

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Click here to go to next lesson on Electric Fields.

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