Search results
- Dictionarymutual inductance
noun
- 1. a measure or coefficient of mutual induction, usually expressed in henries.
Powered by Oxford Dictionaries
This property of a coil which affects or changes the current and voltage in a secondary coil is called mutual inductance. Changing I 1 produces changing magnetic flux in coil 2. In the first coil of N 1 turns, when a current I 1 passes through it, magnetic field B is produced.
Mutual Inductance. Definition: Mutual Inductance between the two coils is defined as the property of the coil due to which it opposes the change of current in the other coil, or you can say in the neighbouring coil.
Sep 12, 2022 · Consequently, an emf is induced in each circuit by the changing current in the other. This type of emf is therefore called a mutually induced emf, and the phenomenon that occurs is known as mutual inductance (M). As an example, let’s consider two tightly wound coils (Figure 14.2.1 ).
Inductance is defined as the property of an electric conductor which causes an electromotive force that is generated due to a change in the current flow. There are two types of inductance: self-inductance and mutual inductance.
Mutual inductance (M) is a measure of the effectiveness of this magnetic coupling between the two coils. It is defined as the ratio of the induced EMF in the secondary coil to the rate of change of current in the primary coil: EMF_secondary = -M * (dI_primary / dt)
It is the current production in a coil due to change in magnetic flux in itself or new coil. Whenever there is a coil, and you have a change in magnetic flux or change in magnetic field, an induced emf is generated in that coil or wire. This very property is inductance.
Mutual inductance is a circuit parameter between two magnetically coupled coils and defines the ratio of a time-varying magnetic flux created by one coil being induced into a neighbouring second coil. Previously we saw that an inductor generates a self-induced emf as a result of a changing magnetic field around its own coil turns.
When an emf is produced in a coil because of the change in current in a coupled coil , the effect is called mutual inductance. The emf is described by Faraday's law and it's direction is always opposed the change in the magnetic field produced in it by the coupled coil ( Lenz's law ).
Definition: If an EMF of one volt is induced in one coil when the rate of change of current in the other is 1 amp per second, the coefficient of mutual inductance between the two is 1 henry, \(\text{H}\).
Equation 14.5 defines the mutual inductance in terms of properties in the circuit, whereas the previous definition of mutual inductance in Equation 14.1 is defined in terms of the magnetic flux experienced, regardless of circuit elements.
