Q23 · Practice questionComplex familiar1 mark
QUESTION 23
The south pole of a bar magnet approaches the left face of a conducting coil, as shown. According to Lenz’s law, the left face of the coil initially behaves as
(A)
a north pole
(B)
a south pole
(C)
an unmagnetised region
(D)
a positive electric charge
WORKED SOLUTION
1 markAnswer B
ANSWER
B
Worked solution
The induced field opposes the increase in flux caused by the approaching south pole. The near face therefore becomes a south pole and repels the magnet.
Select the correct option.
Practice question aligned to the current QCAA syllabus; review the worked solution and marking criteria.
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