Which of the following factors would decrease the magnetic field strength of an electromagnet?(1 point)

Question

Responses

increasing the current or using a higher-voltage power source
increasing the current or using a higher-voltage power source

increasing the distances between the turns of the coil
increasing the distances between the turns of the coil

increasing the number of turns in the coil of wire
increasing the number of turns in the coil of wire

using an iron core or nail

Answer 1

The factor that would decrease the magnetic field strength of an electromagnet is:

increasing the distances between the turns of the coil.

Increasing the distance between turns of the coil reduces the density of the magnetic field lines, which leads to a weaker magnetic field. The other options (increasing current, increasing the number of turns, and using an iron core) would generally increase the magnetic field strength.