ElectroMagnetic InductionMedium
Question
A toroidal solenoid with an air core has an average radius of 15 cm, area of cross-section 12 cm2 and 1200 turns. Ignoring the field variation across the cross-section of the toroid, the self-inductance of the toroid is :-
Options
A.4.6 mH
B.6.9 mH
C.2.3 mH
D.9.2 mH
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