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Fun with Magnets — Science STD 6 — Question

CBSE BoardEnglish MediumSTD 6ScienceFun with Magnets1 Mark
MCQ
Why should we pivot the compass needle on a sharp pin?
  • A
    To minimize the magnetic effect on the pin.
  • B
    To maximize the magnetic effect on the pin.
  • ✓
    To minimize the friction between the pin and the compass needle.
  • D
    To ensure that the compass needle will not drop from the pivoted point.
✓

Answer

Correct option: C.
To minimize the friction between the pin and the compass needle.
By pivoting the compass needle on a fixed pin, the friction between the needle and the fixed pin is minimized and the compass needle can rotate freely in the magnetic field.

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