Which components store energy in the form of a magnetic field using a coil of wire?

Inductors are the components that store energy in the form of a magnetic field using a coil of wire. When current flows through the wire of the coil, it generates a magnetic field around it. This magnetic field represents stored energy, which can be released back into the circuit when the current decreases. The ability of the inductor to store this energy is associated with its inductance, which depends on factors like the number of turns in the coil, the coil's core material, and the geometry of the coil itself. This characteristic makes inductors essential in various applications, such as filters, oscillators, and energy storage systems in electronic circuits.

The other components mentioned do not operate on this principle. Capacitors store energy in an electric field created between two plates when a voltage is applied. Resistors do not store energy; instead, they dissipate electrical energy as heat. Transformers transfer electrical energy between circuits through inductively coupled conductors but do not store energy in the magnetic field like an inductor.