How can the electromagnetic strength of an energized coil of wire be increased?

Name: How can the electromagnetic strength of an energized coil of wire be increased?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Each of the options provided increases the electromagnetic strength of an energized coil of wire. Increasing current flow through the coil, placing an iron core in the middle of the coil, and increasing the number of turns in the coiled wire all serve to enhance the magnetic field generated by the coil.

How Can the Electromagnetic Strength of an Energized Coil of Wire