SSC JE Electrical 2019 with solution SET-2
Which of the following is an important feature of a 3-phase synchronous motor?

High starting torque
No starting torque
Low starting current
Low starting torque

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SSC JE Electrical 2019 with solution SET-2
____ Lamps are used to light up sports stadiums?

LED lamps
Incandescent lamps
Sodium vapor lamps
Fluorescent lamps

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SSC JE Electrical 2019 with solution SET-2
A long straight wire carries a current I = 10 A. At what distance is the magnetic field H = 1 A/m?

20/2π
1/2 π
10/2π
5/2π

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SSC JE Electrical 2019 with solution SET-2
Which of the following motors can be connected across a single-phase AC supply?

DC Series Motor
DC shunt motor
Cumulative compound motor
Differential compound motor

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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
4
1

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