SSC JE Electrical 2019 with solution SET-2
A transistor can be made to operate as a switch by operating it in which of the following regions?

Saturation region, cut-off region
Active region, cut-off region
Active region
Active region, saturation region

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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

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

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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

Fringing effect
Hopkinson’s effect
Stroboscopic effect
Hall effect

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