Question

relating current and electromagnet strength
use the drop - down menu to complete the statement.
increasing the amount of current that flows through a wire the strength of an electromagnet.
decreases
increases
does not change

Explanation:

The strength of an electromagnet is directly proportional to the amount of current flowing through the wire. When the current increases, the magnetic field generated by the current - carrying wire (which is what makes up the electromagnet) becomes stronger. This is based on the principle of electromagnetism where \(B=\mu_0nI\) (for a solenoid, a common form of electromagnet, where \(B\) is the magnetic field strength, \(\mu_0\) is the permeability of free space, \(n\) is the number of turns per unit length, and \(I\) is the current). As \(I\) increases, \(B\) (a measure of the electromagnet's strength) increases.

Answer:

increases