Inductance measures the amount of input signal and change in a circuit. Self-inductance is within a circuit, while mutual inductance is between circuits. Inductors create a magnetic field to transmit voltage. Mutual inductance occurs when magnetic fields interact between circuits. Strong voltage is necessary for mutual inductance.
The term inductance generally refers to an electrical circuit. It represents the measurement within the loop between charges. It can also measure the amount of input signal that has been supplied to the circuit and the amount of change in that input signal as it passes through the circuit. This term can also refer to the rate of change that occurs within the circuit that remains in the components of the circuit, relative to the amount of signal applied to the input of the circuit.
Another term for this measurement within a circuit is self-inductance. This term is used to differentiate the inductance of a circuit within itself from the amount of change in one circuit that occurs due to the change in input signal in another circuit. This instance is more commonly referred to as mutual inductance.
When an electric current created as an input signal is applied to a circuit containing electrical components, a magnetic field is also created. This field is created due to the use of inductors. Inductors are units of coiled wire used to collect and concentrate the amount of charge through the created magnetic field and transmit it through the circuit in the form of voltage. The amount of voltage created by the charge supplied to the circuit and the change that occurs in the voltage as it passes through the circuit and magnetic field is the measurable amount of the inductance of the circuit.
When mutual inductance occurs, it means that there are two circuits located an amount of space apart from each other that they produce magnetic fields that interact with each other. This interaction alters the voltage within the opposing circuit. Another way mutual inductance is created is when the two circuits are run in sequence relative to each other, so that when the magnetic field generated by one circuit creates a change within the circuit, it also affects on the amount of signal applied to the next circuit.
This measurable amount of change within the second circuit that was caused by the inductance in the first circuit represents the mutual inductance properties of the circuits. The necessary factor for the creation of mutual inductance, however, is that each circuit is strong enough in terms of voltage to create a magnetic field within its components capable of altering the field created by the opposing circuit. Otherwise, this phenomenon will not occur.
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