SSC JE Electrical 2019 with solution SET-2
The conductor tied between two supports takes the shape of a ‘catenary’ due to ____?

Earthing
Transposition
Sag
Corona

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SSC JE Electrical 2019 with solution SET-2
A series magnetic circuit will have

Two or more paths for magnetic flux
Different magnetic flux
Total reluctance of a series circuit = difference of the reluctances in different parts of the circuit
Same magnetic flux

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SSC JE Electrical 2019 with solution SET-2
If a circular conductor carries a current of ‘I’ ampere having radius ‘r’ meter, then the magnetizing force at the center of the coil is given by

(1/4r)*(At/m)
(1/2r)*(At/m)
(1/r)*(At/Wb)
(1/r)*(At/m)

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