Two coils are said to be ‘magnetically isolated’ provided the coefficient of coupling K

SSC JE Electrical 2019 with solution SET-2
Two coils are said to be ‘magnetically isolated’ provided the coefficient of coupling K

Is equal to zero

Is less than or equal to one

Is less than one

Is equal to one

Is equal to zero

Is less than or equal to one

Is less than one

Is equal to one

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SSC JE Electrical 2019 with solution SET-2
In electric traction, the specific energy consumption is measured in

RPM/watt-hour

Watt-hour/RPM

Watt-hour/ ton-km

Ton-km watt-hour

RPM/watt-hour

Watt-hour/RPM

Watt-hour/ ton-km

Ton-km watt-hour

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SSC JE Electrical 2019 with solution SET-2
The urban service speed-time curve has no

Braking period

Coasting period

Free-running period

Acceleration period

Braking period

Coasting period

Free-running period

Acceleration period

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SSC JE Electrical 2019 with solution SET-2
Form Factor × Peak Factor =?

Average Value Maximum Value

Maximum Value/RMS Value

Maximum Value/Average Value

RMS Value/Average Value

Average Value Maximum Value

Maximum Value/RMS Value

Maximum Value/Average Value

RMS Value/Average Value

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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

Hall effect

Fringing effect

Hopkinson’s effect

Stroboscopic effect

Hall effect

Fringing 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

25 A

50 A

10 A

100 A

25 A

50 A

10 A

100 A

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SSC JE Electrical 2019 with solution SET-2

SSC JE Electrical 2019 with solution SET-2 Two coils are said to be ‘magnetically isolated’ provided the coefficient of coupling K

SSC JE Electrical 2019 with solution SET-2 In electric traction, the specific energy consumption is measured in

SSC JE Electrical 2019 with solution SET-2 The urban service speed-time curve has no

SSC JE Electrical 2019 with solution SET-2 Form Factor × Peak Factor =?

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

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

SSC JE Electrical 2019 with solution SET-2
Two coils are said to be ‘magnetically isolated’ provided the coefficient of coupling K

SSC JE Electrical 2019 with solution SET-2
In electric traction, the specific energy consumption is measured in

SSC JE Electrical 2019 with solution SET-2
The urban service speed-time curve has no

SSC JE Electrical 2019 with solution SET-2
Form Factor × Peak Factor =?

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

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