how does adding an iron bar to a solenoid affect the magnetic field of the electromagnet?\no it changes the…

how does adding an iron bar to a solenoid affect the magnetic field of the electromagnet?\no it changes the magnetic field to a current.\no it changes the magnetic fields direction.\no it increases the magnetic fields strength.\no it decreases the magnetic fields strength.
Answer
Brief Explanations:
Iron is a ferromagnetic material. When an iron bar is added to a solenoid, the iron atoms align with the magnetic field of the solenoid. This alignment of magnetic - domains in iron enhances the overall magnetic field, increasing its strength.
Answer:
It increases the magnetic field's strength.