Computer · Surveying - Compass Surveying
Choose the INCORRECT statement with respect to local attraction in a magnetic compass.
- 1Local attraction by magnetic material is the disturbing influence on the magnetic needle of the compass.
- 2The amount of deviation of the magnetic needle with respect to magnetic north in a given locality is the measure of local attraction.
- 3A magnetic needle will not point to the magnetic north when it is under the influence of the external attractive force.
- 4There are some places called magnetic anomalies where the local attraction is negligible.✓
Correct answer
There are some places called magnetic anomalies where the local attraction is negligible.
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