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Test: Mutual Inductance - 2 - Question 1

Two coils having self-inductances of 10 mH and 40 mH are mutually coupled. What is the maximum possible mutual inductance?

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Test: Mutual Inductance - 2 - Question 2

The coefficient of coupling between two coils is 0.45. The first coil has an inductance of 75 mH and the second coil has an inductance of 105 mH. What is the mutual inductance between the coils?

Detailed Solution for Test: Mutual Inductance - 2 - Question 2

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Test: Mutual Inductance - 2 - Question 3

The self inductance of two coils are 4mH and 9mH respectively. If the coefficient of coupling is 0.5, the mutual inductance between the coils is _____

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Test: Mutual Inductance - 2 - Question 4

The total inductance of two coupled coils in the ‘series aiding’ and ‘series opposing’ connections are 1.4 × 10^{-3} Henry and 0.6 × 10^{-3} Henry, respectively. The value of mutual inductance will be:

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*Answer can only contain numeric values

Test: Mutual Inductance - 2 - Question 5

An air-core radio-frequency transformer as shown has a primary winding and a secondary winding. The mutual inductance M between the windings of the transformer is ______ μH.

(Round off to 2 decimal places.)

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Test: Mutual Inductance - 2 - Question 6

Determine the mutual inductance between two coils when a current changing at 20 A/s in one coil induces an EMF of 50 mV in the other.

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Test: Mutual Inductance - 2 - Question 7

Two inductive coils which are close to each other have a mutual inductance of 0.3 H. Current through one coil is increased from 1 A to 4 A in 0.03 s. The voltage induced in the other coil is:

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Test: Mutual Inductance - 2 - Question 8

Two coupled coils have self inductances L_{1} = 10 mH and L_{2} = 20 mH.

The co-efficient of coupling (K) being 0.75 in the air. Voltage in the second coil when the current in circuit is given by I = 2 sin (314t) A is _______

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Test: Mutual Inductance - 2 - Question 9

Two coils having self-inductance of L_{1} and L_{2}, respectively, are magnetically coupled. The maximum possible value of mutual inductance between the coils is

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Test: Mutual Inductance - 2 - Question 10

Mutual inductance between two closely coupled coils is 2 H. Now, if the number of turns in one coil is reduced by 50 percent and those of the other coil is doubled then, new value of mutual inductance is:

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