SSC JE Electrical 2019 with solution SET-2

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

Fluorescent lamps

Incandescent lamps

LED lamps

Sodium vapor lamps

Fluorescent lamps

Incandescent lamps

LED lamps

Sodium vapor lamps

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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

Fringing effect

Stroboscopic effect

Hopkinson’s effect

Hall effect

Fringing effect

Stroboscopic effect

Hopkinson’s effect

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SSC JE Electrical 2019 with solution SET-2
In a 4 pole. 20 kW, 200 V wave wound DC shunt generator, the current in each parallel path will be

50 A

25 A

100 A

10 A

50 A

25 A

100 A

10 A

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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

Electric flux

Electromotive force

Potential difference

Electrical potential

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SSC JE Electrical 2019 with solution SET-2
A coil of 360 turns is linked by a flux of 200 μWb. If the flux is reversed in 0.01 second, then find the EMF induced in the coil?

144 V

7.2 V

14.4 V

0.72 V

144 V

7.2 V

14.4 V

0.72 V

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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

Notching up

Braking

Free running

Coasting

Notching up

Braking

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