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 0.5
Greater than 0.5
Less than 0.5
Equal to zero

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SSC JE Electrical 2019 with solution SET-2
Which of the following comes under the category of single-phase commutator motors?

Universal motor
Shaded pole motor
Capacitor start motor
Resistance start motor

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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

Hall effect
Hopkinson’s effect
Stroboscopic effect
Fringing effect

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