Suppose we have two solenoids of same length their diameters differ only to the extent to which one can fitted on to the other. The inductances of two solenoids can be considered the same and equal to L.
Column-I (Ways on which the solenoids are connected) | Column-II (Equivalent inductance) |
(i) Solenoids are connected in series and one is fitted on the other and the sense of turns coincides | [A] |
(ii) Solenoids are connected in parallel and one is fitted on the other and the sense of turns coincides | [B] 4L |
(iii) Solenoids are connected in series, one is fitted on the other and the sense of turns are opposite | [C] L |
(iv) Solenoids are connected in parallel and are separated by a large distance and the sense of turns are opposite | [D] 0 |
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
Ans.
(i) [B]
(ii) [C]
(iii) [D]
(iv) [A]
Sol.
(i) 4L
(ii) L
(iii) 0
(iv) 
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