Magnets and magnetic fields

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Question 13
Easy

Which of the following changes will decrease the strength of an electromagnet?

Increasing the size of the current flowing through the coil

Inserting a soft iron core into the coil

Decreasing the number of turns of wire in the coil

Winding the same number of turns over a shorter length

Magnets and magnetic fields Questions

  1. GCSE
  2. /Physics
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