WAEC Physics 2025 Theory — Question 32
Question 32 of 34 from the West African Examinations Council (WAEC) Physics 2025 Theory paper, with the correct answer and a full explanation.
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2(a)(i) State three characteristics of magnetic lines of force. (ii) What is a solenoid?
Model answer
(i) Magnetic lines of force point away from a North pole and towards a South pole; they are closer together where the magnetic field is stronger; they do not intersect one another; they form closed loops. (ii) A solenoid is a long wire wound in the shape of a helix (spiral), usually around a cylindrical core.
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