Electromagnetic Induction - Result Question 25

25. Two coils of self inductances 2mH and 8mH are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is

(a) 6mH

(b) 4mH

(c) 16mH

(d) 10mH

[2006]

Show Answer

Answer:

Correct Answer: 25. (b)

Solution:

  1. (b) Mutual Inductance of two coils

M=M1M2=2mH×8mH=4mH

It is not possible to have mutual inductance without self inductance but if may or may not be possible self inductance without mutual in ductance.



NCERT Chapter Video Solution

Dual Pane