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

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SSC JE Electrical 2019 with solution SET-2
Four options have been given, out of which three are alike in some manner and one is different. Select the odd one?

Potential difference
Electric flux
Electromotive force
Electrical potential

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SSC JE Electrical 2019 with solution SET-2
The number of brushes required for a 4 pole, lap wound DC machine is

4
8
2
1

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP