Suppose that the Coil 1 in the figure below is moved to the right. What will hap

Question

Suppose that the Coil 1 in the figure below is moved to the right. What will happen to the mutual inductance of the coils? Mutual inductance will increase monotonically Mutual inductance will decrease morvotonicalty Mutual inductance is unaffected by moving coil 1 to the right. Mutual inductance increases to a maximum, then it decreases Mutual inductance will decrease to a minimum, then it increases none of the above That is, the farther to the right the coil is moved from its original position, the more the mutual inductance will increase

Explanation / Answer

Mutual inductance is

due to current changing in the first coil, there would be change in magnetic flux results the induced emf in the second coil .

can be expressed as induced emf e2 = N2 di /dt , if the number of turns in the second coil and space between them are same then

there is no effect to the mutual inductance in the second coil.
option C : Mutual inductace is unaffected by moving coil 1 to the right.

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