Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-conceptual-Hard-Class 12
Which method is most efficient for creating a permanent magnet?
A
Placing a ferromagnetic rod in a solenoid and passing a current
B
Holding an iron rod in the north-south direction and hammering it
C
Stroking a steel rod with a bar magnet in the same direction
D
Wrapping a copper coil around a wooden rod
Correct Answer
Option A
Detailed Explanation
According to the NCERT context, placing a ferromagnetic rod in a solenoid and passing a current is an efficient way to make a permanent magnet.
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