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
The wattage rating of a single-phase induction motor used as a ceiling fan will be in the range of

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

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SSC JE Electrical 2019 with solution SET-2
______braking is used where the load on the motor has very high inertia (e.g. in electric trains)?

Rheostatic
Regenerative
Plugging
Coasting

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

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SSC JE Electrical 2019 with solution SET-2
Four options have been given, out of which three are alike in some manner and one is different. Select the odd one?

Electric flux
Electromotive force
Potential difference
Electrical potential

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SSC JE Electrical 2019 with solution SET-2
During the ______ period the power supply to the motor is cut-off and the train is allowed to run due to its own momentum?

Free running
Coasting
Braking
Notching up

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