Mutual induction is a phenomenon in electromagnetism that occurs when a changing current in one coil or conductor induces an electromotive force (EMF) in a nearby second coil or conductor. Unlike self-induction, where the changing current induces EMF in the same coil, mutual induction involves two separate coils or conductors that are in close proximity to each other.
When the current through the first coil changes, it creates a changing magnetic field around it. This changing magnetic field, in turn, links with the second coil, inducing an EMF in the second coil. The induced EMF in the second coil is proportional to the rate of change of current in the first coil and the coupling coefficient, which depends on the physical arrangement of the two coils and the materials used.
Mutual induction is described by Faraday's law of electromagnetic induction, which states that the induced EMF in a coil is directly proportional to the rate of change of magnetic flux linking with the coil. The mutual induction between the two coils is often governed by the principle of Lenz's law, which states that the direction of the induced EMF in the second coil is such that it opposes the change in magnetic flux that caused it.
Mutual induction is the basis for the operation of transformers, which are crucial devices used in power distribution and various electrical applications. In a transformer, there are two coils (primary and secondary) wound around a common core. When an alternating current flows through the primary coil, it generates a changing magnetic field, which induces a voltage in the secondary coil, enabling the transformation of voltage levels and the efficient transfer of electrical energy.
Mutual induction also plays a role in other applications, such as inductive coupling used in wireless power transfer and electromagnetic interference (EMI) between adjacent circuits or conductors. It is an essential concept in electrical engineering and is used in various devices to transfer energy or information between different circuits without direct electrical contact.
Mutual induction is defined as the property of the coils that enables it to oppose the changes in the current in another coil. With a change in the current of one coil, the flow changes too thus inducing EMF in the other coil. This phenomenon is known as mutual induction.
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Mutual induction is a phenomenon in electromagnetism that occurs when a changing current in one coil or conductor induces an electromotive force (EMF) in a nearby second coil or conductor. Unlike self-induction, where the changing current induces EMF in the same coil, mutual induction involves two separate coils or conductors that are in close proximity to each other.
When the current through the first coil changes, it creates a changing magnetic field around it. This changing magnetic field, in turn, links with the second coil, inducing an EMF in the second coil. The induced EMF in the second coil is proportional to the rate of change of current in the first coil and the coupling coefficient, which depends on the physical arrangement of the two coils and the materials used.
Mutual induction is described by Faraday's law of electromagnetic induction, which states that the induced EMF in a coil is directly proportional to the rate of change of magnetic flux linking with the coil. The mutual induction between the two coils is often governed by the principle of Lenz's law, which states that the direction of the induced EMF in the second coil is such that it opposes the change in magnetic flux that caused it.
Mutual induction is the basis for the operation of transformers, which are crucial devices used in power distribution and various electrical applications. In a transformer, there are two coils (primary and secondary) wound around a common core. When an alternating current flows through the primary coil, it generates a changing magnetic field, which induces a voltage in the secondary coil, enabling the transformation of voltage levels and the efficient transfer of electrical energy.
Mutual induction also plays a role in other applications, such as inductive coupling used in wireless power transfer and electromagnetic interference (EMI) between adjacent circuits or conductors. It is an essential concept in electrical engineering and is used in various devices to transfer energy or information between different circuits without direct electrical contact.
Answer:
Mutual induction is defined as the property of the coils that enables it to oppose the changes in the current in another coil. With a change in the current of one coil, the flow changes too thus inducing EMF in the other coil. This phenomenon is known as mutual induction.