ICSE Class 10 Physics 2019 Solved Paper
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The diagram below shows a magnetic needle kept just below the conductor A B
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Question : 72
Total: 74
Why is the deflection produced?
Solution:
On passing current in the wire, a magnetic field is produced around it and the magnetic needle experience a torque in this magnetic field, so it deflects to align itself in the direction of magnetic field at that point.
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