Q.Strength of electromagnet can be increased by

  • AIncreasing the cross-sectional area
  • BIncreasing the number of turns
  • CIncreasing current supply
  • DAll above methods
Correct Answer : (D)

All above methods

Hints :

Strength of electromagnet can be increased by Increasing the cross-sectional area, Increasing the number of turns and Increasing current supply.

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