The core of a transformer and other electromagnetic device is laminated so that

Options :
  1. the residual magnetism of core decrease
  2. the intensity of magnetic field increase
  3. the energy loss due to eddy currents become less
  4. the level of magnetic saturation of core increases
Answer and Explanation :-

Answer: Option 3

Explanation:

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A little kid asks my dad why that man is chopping down the tree.Dad: He's not chopping it down. He's saving it. Those branches were long dead from disease. All plants are like that. By cutting off the damage you make it possible for the tree to grow again. You watch - by the end of summer, this tree will be the strongest on the block.
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