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Question
Answer the following question regarding earth’s magnetism:
Geologists claim that besides the main magnetic N-S poles, there are several local poles on the earth’s surface oriented in different directions. How is such a thing possible at all?
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Solution
Yes, there are several local poles on the earth’s surface oriented in different directions. A magnetised mineral deposit is an example of a local N-S pole.
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The net magnetic flux through any closed surface, kept in a magnetic field is ______.
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- is always zero.
- can be zero at specific points.
- can be positive or negative.
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