| Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
| Assertion [A]: When two coils are wound on each other, the mutual induction between the coils is maximum. |
| Reason (R): Mutual induction does not depend on the orientation of the coils. |
A) Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A]
B) Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A]
C) Assertion [A] is true but Reason (R) is false
D) Assertion [A] is false and Reason (R) is also false
Correct Answer: C
Solution :
(c) The manner in which the two coils are oriented, determines the coefficient of coupling between them. \[M={{K}^{2}}\cdot {{L}_{1}}{{L}_{2}}\] When the two coils are wound on each other, the coefficient of coupling is maximum and hence mutual inductance between the coil is maximum.
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