Induction: Uses electrical energy to create a magnetic field and the magnetic field restores energy back to the line when it collapses.
Electrical Theory, Tom Hernry, pp26
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Inductive current refers to the flow of electric current that occurs due to the presence of inductance in a circuit. This inductance arises from the magnetic field generated around a conductor when current flows through it. Inductive currents can cause phase shifts in alternating current circuits and require additional considerations for proper circuit design and operation.
In an inductive circuit, the current lags behind the voltage due to the energy stored in the inductor's magnetic field. The voltage leads the current by 90 degrees in an ideal inductive circuit. The relationship between voltage and current is described by the equation V = L di/dt, where V is voltage, L is inductance, di is change in current, and dt is change in time.
In a pure inductive circuit, the relationship between current and voltage is such that the current lags behind the voltage by a phase angle of 90 degrees. This means that the current and voltage are out of phase with each other, with the current reaching its peak value after the voltage has reached its peak value.
In an AC circuit, the source voltage can either lead or lag the current, depending on the type of load. Inductive loads cause the voltage to lag the current, while capacitive loads cause the voltage to lead the current.
A resistive load directly resists the flow of current in an electrical circuit, causing a voltage drop. An inductive load, on the other hand, creates a magnetic field that can store energy and cause a delay in current flow. This can lead to power factor issues and voltage spikes in the circuit.
Inductive loads in electrical circuits are characterized by the presence of coils or windings that store energy in a magnetic field. They tend to resist changes in current flow and create a lagging power factor. Capacitive loads, on the other hand, store energy in an electric field and tend to lead the current flow. They can help improve power factor. In summary, inductive loads store energy in a magnetic field and resist changes in current flow, while capacitive loads store energy in an electric field and can help improve power factor.