| 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]: Mutual inductance of a pair of coils depend on their separation as well as their relative orientation. |
| Reason (R): Mutual inductance depend upon the length of the coil only. |
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 mutual inductance in case of a medium of relative permeability \[{{\mu }_{r}}\]present is \[M={{\mu }_{r}}{{\mu }_{0}}{{n}_{1}}{{n}_{2}}\pi r_{1}^{2}l\]
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