Single Answer MCQ
Q-00001964
What is the purpose of tapping the board gently in the activity involving iron filings and a bar magnet?
1
To clean the board
2
To align the filings
3
To create noise
4
To attract the filings
Answer and Solution
Answer
B. To align the filings
Solution:
Tapping the board gently in the activity involving iron filings and a bar magnet helps in aligning the filings along the magnetic field lines. This makes the pattern of the field visible and clear. Therefore, the correct answer is 'To align the filings'.
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