WAEC Physics 2017 Objective — Question 45
Question 45 of 50 from the West African Examinations Council (WAEC) Physics 2017 Objective paper, with the correct answer and a full explanation.
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Eddy currents can be reduced by
- A. A. using coil of high resistance
- B. B. winding the coil on a soft iron core
- C. C. creating holes in the metal platesCorrect
- D. D. using coil of low resistance
Explanation
Eddy currents can be reduced by creating holes or laminating (slots) in the metal plates.
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