Answer:
You can make a magnetic field stronger by doing the following:
1. Increasing the number of turns on the coil.
2. Increasing the current.
3. Placing an iron core inside the solenoid.
Explanation:
You can make an electromagnet stronger by doing these things:
wrapping the coil around a piece of iron (such as an iron nail)
adding more turns to the coil.
increasing the current flowing through the coil.
