Question

HELP ASAP!!!!! How does adding an iron bar to a solenoid affect the magnetic field of the electromagnet?

1)It changes the magnetic field to a current.
2)It changes the magnetic field’s direction.
3)It increases the magnetic field’s strength.
4)It decreases the magnetic field’s strength.

Answer 1

its C

Step-by-step explanation:

Answer 2

3 is the right answer because it increases it's strength