1 the magnetic domains that become aligned in the iron

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1. The magnetic domains that become aligned in the iron core contribute to the overall magnetic field of the coil and there- fore increase its magnetic induction.

2. An iron core can generate an electromagnetic wave to change the magnetic field in a coil.

3. An iron core is a magnet and generates magnetic field with or withput a coil.

4. An iron core can increase the current in the coil.

Reference no: EM13620103

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