A) decreasing the number of turns in the coils
B) increasing the number of turns in the coils
C) Winding the coils on wooden cores
D) None of the above
Correct Answer: B
Solution :
(b) increasing the number of turns in the coils Mutual inductance of coils, \[M=\frac{{{\mu }_{0}}{{\mu }_{r}}{{N}_{1}}{{N}_{2}}A}{l}\] It is clear that mutual inductance of coils can be increased by increasing the number of turns in the coils.
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