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How do you find the coefficient of mutual inductance?
Formula used: M = εemf(dIdt), where M is the mutual inductance, ε is the EMF induced into the other coil and dIdt is the rate of change of current in the given coil. Mutual inductance is a measure of induction between two different circuits.
What is coefficient of coupling in mutual inductance?
Hint: Coefficient of coupling gives the interaction between two coils in terms of mutual induction. Mutual inductance is the property of two coils by which each coils opposes any change in the strength of current in the other coil due to induced emf. Mutual inductance between two coils will be the same.
Why mutual inductance is same?
When the coefficient of coupling, k is equal to 1, (unity) such that all the lines of flux of one coil cuts all of the turns of the second coil, that is the two coils are tightly coupled together, the resulting mutual inductance will be equal to the geometric mean of the two individual inductances of the coils.
How to calculate the mutual inductance of coil 1?
The mutual inductance of coil 1 is then given as M12 = µ0µrN1N2A/L …………………. (4) From equation (3) and (4) we observe that, for perfect mutual coupling the mutual inductance of both the coils are same.
What does mutual coupling of two coils mean?
Mutual coupling of two coils means that magnetic field produced by one coil is linking / crossing the other coil and vice versa. Mutual Inductance is generally denoted by letter M and its SI unit is Henry. Let us take an example for better understanding of this mutual inductance.
How does mutual inductance depend on the geometry?
It shall be noted that mutual inductance only depends on the geometry like radius of coil, number of turns, spacing between the two coils etc like self-inductance.
Mutual Inductance. Mutual Inductance is the interaction of one coils magnetic field on another coil as it induces a voltage in the adjacent coil. In the previous tutorial we saw that an inductor generates an induced emf within itself as a result of the changing magnetic field around its own turns.