Question

The self-inductance of air core solenoid is 2.5 mH. If its core is replaced by iron core, then its self
- inductance becomes 1 H. Find out the relative permeability of iron..​

Answer 1

Answer:

Solution

Lair=4.8×10−3H

Liron=1.8H

Lair=μ0n2Al=4.8×10−3

r=LironLiron=1.84.8×10−3=375

Explanation:

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