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.

Previous

Tesla is a unit of

Next

A permeable substance is one

Join The Discussion