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Eddy currents can be reduced by

Physics
WAEC 2010

Eddy currents can be reduced by

  • A. using coil of high resistance
  • B. winding the coil on a soft iron core
  • C. creating holes in the metal plates
  • D. using coil of low resistance
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Correct Answer: Option C
Explanation

This method interrupts the flow of eddy currents by increasing the resistance in the path of the currents, thereby reducing their magnitude.

 Other Options:
A. Using a high-resistance coil: This does not directly affect eddy currents in conductive materials.
B. Winding the coil on a soft iron core can enhance magnetic effects and may not reduce eddy currents.
D. Using low resistance coil: This would not help reduce eddy currents; it could potentially increase the flow of currents.


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