Describe a method for mapping a magnetic field by the use of a small compass.?
Question: Describe a method for mapping a enthralling field by the use of a small compass.
Answer: charge the compass down on a BIG sheet of paper and draw a short line on the MS that matches the direction the compass needle is pointing.
Keep doing that at stray points on the paper. A pattern will emerge on the paper that matches the enthralling field

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