a mutual inductance m12 of coil 1 with respect to coil 2 (a)decreases when they are brought near (b) depends upon the current passing through the coil (c) increase when one of them is rotated around the axis (d) is the same m12 of coil 2 with respect to coil 1
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Answer:
Option a and d.
Explanation:
If the two coils 1 and 2 are present with mutual inductance m1 and m2. Then the mutual inductance of the coil 1 due to 2 decreases when they are bought near since, mutual inductance is indirectly proportional to the length of separation.
The mutual induction of m12 is same as m21 since, the formulae of mutual induction μN1N2A/l is same for both of the coils.
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