How does an iron nail become a magnet when it is placed in a strong magnetic field

Explanation:

A current flowing in a wire creates a magnetic field around the wire.

This concept is used in an electromagnet.

Wrap a wire around the iron nail and turned into a coil and then connect it to a battery. This system is called an electromagnet.

By adding the more turns to the coil or increasing the current in the coil, you can make an electromagnet more stronger.

Iron is used in an electromagnet as it easily gain magnetic properties. When the current is flowing in the coil then it will be easily gain magnetic properties and when the current is stopped then it will loose magnetic properties.

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

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laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.