The strength of an electromagnet is directly proportional to the amount of current passing through it. This means that increasing the amount of current traveling through an electromagnet will increase its strength, and decreasing the current will weaken it.
This relationship between current and magnetism is described by the Ampere's law, which states that the magnetic field produced by a current-carrying wire is proportional to the current flowing through it.
Therefore, increasing the current through an electromagnet will result in a stronger magnetic field, which in turn will increase the magnet's strength. The relationship between current and magnetism is linear, which means that doubling the current passing through the coil will double the magnetic field strength.
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