Direction: Q.26 to Q.30 |
Mutual inductance is the phenomenon of inducing emf in a coil, due to a charge of current in the neighbouring coil. The amount of mutual inductance that links one coil to another depends very much on the relative positioning of the two coils, their geometry and relative separation between them. Mutual inductance between the two coils increases \[{{\mu }_{r}}\] times if the coils are wound over an iron core of relative permeability\[{{\mu }_{r}}\]. |
Read the above passage carefully and give the answer of the following questions: |
A) \[{{\mu }_{0}}\pi {{b}^{2}}{{n}_{1}}{{n}_{2}}L\]
B) \[{{\mu }_{0}}\pi {{a}^{2}}{{n}_{1}}{{n}_{2}}{{L}^{2}}\]
C) \[{{\mu }_{0}}\pi {{a}^{2}}{{n}_{1}}{{n}_{2}}L\]
D) \[{{\mu }_{0}}\pi {{b}^{2}}{{n}_{1}}{{n}_{2}}{{L}^{2}}\]
Correct Answer: C
Solution :
(c) \[{{\mu }_{0}}\pi {{a}^{2}}{{n}_{1}}{{n}_{2}}L\] The mutual inductance of the system is \[M={{\mu }_{0}}{{n}_{1}}{{n}_{2}}\pi {{a}^{2}}L\]You need to login to perform this action.
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