Questions
Two pure inductor coils of self inductance L each are connected in series, the net inductance is
a
L
b
2L
c
L/2
d
L/4
detailed solution
Correct option is B
When two coils are connected in series, the sane current i is induced in both the coils and total magnetic flux linked with them will be equal to the sum of the flux linked with them individually, i.e.,Φ=L1i+L2i .......(1)If equivalent inductance be L' thenΦ=L′iHence L′i=L1i+L2ior L′=L1+L2Here L1=L2=L∴L′=L+L=2LTalk to our academic expert!
Similar Questions
Two pure inductors, each of self-inductance L are connected in parallel but are well separated from each other, then the total inductance is
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