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An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when an electric current flows through it. [1] An inductor typically consists of an insulated wire wound into a coil.
In electronics, a choke is an inductor used to block higher-frequency alternating currents (AC) while passing direct current (DC) and lower-frequency ACs in a circuit. A choke usually consists of a coil of insulated wire often wound on a magnetic core , although some consist of a doughnut-shaped ferrite bead strung on a wire.
Series RL, parallel C circuit with resistance in series with the inductor is the standard model for a self-resonant inductor. A series resistor with the inductor in a parallel LC circuit as shown in Figure 4 is a topology commonly encountered where there is a need to take into account the resistance of the coil winding and its self-capacitance.
A resistor–inductor circuit (RL circuit), or RL filter or RL network, is an electric circuit composed of resistors and inductors driven by a voltage or current source. [1] A first-order RL circuit is composed of one resistor and one inductor, either in series driven by a voltage source or in parallel driven by a current source.
Pupin coils in PTT Museum in Belgrade (Serbia). A loading coil or load coil is an inductor that is inserted into an electronic circuit to increase its inductance.The term originated in the 19th century for inductors used to prevent signal distortion in long-distance telegraph transmission cables.
To operate the coil continually, the DC supply current must be repeatedly connected and disconnected to create the magnetic field changes needed for induction. [1] To do that, induction coils use a magnetically activated vibrating arm called an interrupter or break (A) to rapidly connect and break the current flowing into the primary coil. [1]