A coil with air inside it has a self inductance of 0.05 H. A soft iron rod of relative permeabiilty 100 is introduced inside the coil. The value of se

Question

A coil with air inside it has a self inductance of 0.05 H. A soft iron rod of relative permeabiilty 100 is introduced inside the coil. The value of se

A coil with air inside it has a self inductance of 0.05 H. A soft iron rod of relative permeabiilty 100 is introduced inside the coil. The value of self inductance is
A. 5 H
B. 0.05 H
C. 2.5 H
D. 10 H

Monjur Alahi

7 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
`L_(m)=mu_(r)L_(a)`
`=100xx0.05=5H`

7 views Answered 2023-02-05 15:29