Single Answer MCQ
Q-00019598
In a circuit with a long, straight conductor carrying DC, what will be visually represented when iron fillings are sprinkled near it?
1
Straight lines
2
Concentric circles
3
Random lines
4
No lines
Answer and Solution
Answer
B. Concentric circles
Solution:
When iron filings are near a straight current-carrying conductor, they will align in concentric circles around the wire indicating the magnetic field's shape.
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