Question

a , write 1 way in which make the electromagnet weaker

b , write 1 way in which make the electromagnet stronger​

Answer 1

Answer:

We can make an electromagnet weaker by decreasing the number of loops in the coil.

We can make an electromagnet stronger by increasing the flow of current through the coil.

Answer 2

Answer:

Changing the metal core for a different metal will make the electromagnet stronger or weaker. Iron cores make for very strong fields. Steel cores make weaker fields. Sliding the core partially out of the coil will weaken the field, because less of the metal is within it.