What will increase the strength of an electromagnet? A. Adding more loops to the wire
B. Wrapping the wire around a piece of paper
C. Turning the current down
D. Having fewer coils

B. Wrapping the wire around a piece of paper

The Answer will be :

=》A. Adding more loops to the wire.

We can increase the strength of electromagnet by increasing current flowing through it, increasing number of loops or placing a soft iron core inside it.