SSC JE Electrical 2019 with solution SET-2
The wattage rating of a single-phase induction motor used as a ceiling fan will be in the range of

600 to 800 W
200 to 500 W
50 to 150 W
10 to 50 W

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

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SSC JE Electrical 2019 with solution SET-2
In the salient pole of the phase synchronous machine, the rotor will have

Smaller diameter, smaller axial length
Larger diameter, shorter axial length
Larger diameter, larger axial length
Smaller diameter, larger axial length

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SSC JE Electrical 2019 with solution SET-2
The flux while crossing air gap tends to bulge outwards, thereby increasing the effective area of the gap, this effect is known as

Stroboscopic effect
Hopkinson’s effect
Hall effect
Fringing effect

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SSC JE Electrical 2019 with solution SET-2
In the two-wattmeter method of three-phase power measurement of a balanced load, if the reading of one meter is −200W, then the power factor of the load is

Equal to zero
Equal to 0.5
Greater than 0.5
Less than 0.5

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