Electronics and Communication Engineering - Networks Analysis and Synthesis - Discussion
Discussion Forum : Networks Analysis and Synthesis - Section 2 (Q.No. 20)
20.
An air cored coil has an inductance of 0.3 H. If another coil has an iron core of μr = 500, the remaining quantities being the same, the inductance of the second coil will be
0.3 H
0.3 x 500 H
none of the above
Answer: Option
Explanation:
Inductance a μr.
Discussion:
2 comments Page 1 of 1.
Sandy said:
8 years ago
Yes, you are right @Preeti.
Correct answer shouid be B because relative permability of air is 1.
Correct answer shouid be B because relative permability of air is 1.
Preeti said:
9 years ago
Actually, the answer is B because L= (N^2 u A)/L.
So inductance is directly proportional to u hence L2 = (L1 * u2)/u1 = 0.3 * 500 = 150H.
So inductance is directly proportional to u hence L2 = (L1 * u2)/u1 = 0.3 * 500 = 150H.
(1)
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