SSC JE Electrical 2019 with solution SET-2
The total number of possible phase sequences for a three-phase AC system is ____

1
3
2
0

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SSC JE Electrical 2019 with solution SET-2
For a three-phase induction motor slip at No Load ÷  slip at Full Load

Always equal to one
Always less than one
Always equal to zero
Always less than one

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SSC JE Electrical 2019 with solution SET-2
For indoor lighting the range of space : height is

1 : 2
5 : 6
2 : 3
3 :4

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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

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

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