The coefficient of self inductance of a solenoid is 0.18 mH. If a crod – McqOptions

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1.	The coefficient of self inductance of a solenoid is 0.18 mH. If a crode of soft iron of relative permeability 900 is inserted, then the coefficient of self inductance will become nearly
A.	5.4 mH
B.	162 mH
C.	0.006 mH
D.	0.0002 mH
Answer» C. 0.006 mH

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