
Concept explainers
To explain: The way a bar magnet behaves if the current in the

Explanation of Solution
Introduction:
A temporary magnet created when there is a current in a wire coil is termed as electromagnet.
When a bar magnet is repelled when brought close to an electromagnet, it indicates the fact that their magnetic north pole and magnetic south pole is similar. On reversing the current in the electromagnet, the polarity is reversed. When a bar magnet is now brought close to the electromagnet, it is attracted towards it as unlike poles attract.
Conclusion:
The direction of magnetic field of an electromagnet depends upon the direction of current in the electromagnet.
Chapter 7 Solutions
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
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