SSC JE Electrical 2019 with solution SET-2
The work done on or by a unit N-pole in moving once around a closed path is equal to

Magnetic flux density
The product of current and number of turns enclosed by that path
The product of flux and number of turns enclosed by that path
Reluctance

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

2
8
1
4

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

Transposition
Corona
Sag
Earthing

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SSC JE Electrical 2019 with solution SET-2
The scheduled speed of a train is______

Equal to average speed
Always less than the average speed
Always greater than the average speed
Equal to maximum speed

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SSC JE Electrical 2019 with solution SET-2
Form Factor × Peak Factor =?

Maximum Value/RMS Value
Maximum Value/Average Value
Average Value Maximum Value
RMS Value/Average Value

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