Final answer:
Increasing distances between turns of the coil decreases magnetic field strength, while increasing current or using a higher voltage power source increases it.
Explanation:
Increasing the distances between the turns of the coil would decrease the magnetic field strength of an electromagnet. This is because the magnetic field generated by a current-carrying wire depends on the distance from the wire, and increasing the distance between the turns would weaken the field. On the other hand, increasing the current or using a higher-voltage power source would actually increase the magnetic field strength as it would result in a stronger current passing through the wire.
Learn more about Magnetic field strength of electromagnets here:
https://brainly.com/question/31086516
