Concept explainers
To Explain:Whetherthe northward-pointing needlepoint northward when the compass is brought to the southern hemisphere.
Answer to Problem 30A
Northward-pointing needlepoint north-ward when a compass is brought to the southern hemisphere.
Explanation of Solution
Introduction:
A magnet compass points to the geographic north pole.The Earth's magnetic polesare not the same as geographic poles.
Explanation:
A magnetic pole near to the earth’s geographic north pole is the south magnetic pole. The opposite poles of two magnets attract. Therefore, the north pole attracts the south pole towards it.
The direction of magnetic field lines is from the north pole of the magnet to the south pole. So that, the magnetic field lines of the earth are directed from the southern geographic hemisphere tothe northern hemisphere.
Conclusion:
The magnetic field lines always run from the north pole to the south pole. Therefore, northward-pointing needlepoint northward when a compass brought to the southern hemisphere.
Chapter 36 Solutions
Conceptual Physics: The High School Physics Program
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