A synchronous motor runs at 600rpm, which of the following case is true?

SSC JE Electrical 2019 with solution SET-1
A synchronous motor runs at 600rpm, which of the following case is true?

P = 8, f = 50 Hz

P = 10, f = 60 Hz

P= 12, f = 50 Hz

P = 12, f = 60 Hz

P = 8, f = 50 Hz

P = 10, f = 60 Hz

P= 12, f = 50 Hz

P = 12, f = 60 Hz

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SSC JE Electrical 2019 with solution SET-1
A single-phase circuit’s power factor can be measured with a/an

Combination of a voltmeter and ammeter

Combination of a voltmeter, ammeter, and wattmeter

Energy meter alone

Wattmeter alone

Combination of a voltmeter and ammeter

Combination of a voltmeter, ammeter, and wattmeter

Energy meter alone

Wattmeter alone

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SSC JE Electrical 2019 with solution SET-1
A magnetic circuit is applied with a current that changes at a rate of 5 A/sec. The circuit has an inductance of 2H, then the self-induced EMF is

0.4 V

−4 V

−10 V

−2.5 V

0.4 V

−4 V

−10 V

−2.5 V

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SSC JE Electrical 2019 with solution SET-1
Relate ‘Reluctance with the following:

Weber/m

Weber/A

A/m

A-T/Weber

Weber/m

Weber/A

A/m

A-T/Weber

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SSC JE Electrical 2019 with solution SET-1
Reflected Light/Incident Light =

Waste light factor

Maintenance factor

Absorption factor

Reflection factor

Waste light factor

Maintenance factor

Absorption factor

Reflection factor

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SSC JE Electrical 2019 with solution SET-1
Lamp efficiency is measured in

Lumen/watt

Candela/watt

Lux/watt

Lumen/lux

Lumen/watt

Candela/watt

Lux/watt

Lumen/lux

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 A synchronous motor runs at 600rpm, which of the following case is true?

SSC JE Electrical 2019 with solution SET-1 A single-phase circuit’s power factor can be measured with a/an

SSC JE Electrical 2019 with solution SET-1 A magnetic circuit is applied with a current that changes at a rate of 5 A/sec. The circuit has an inductance of 2H, then the self-induced EMF is

SSC JE Electrical 2019 with solution SET-1 Relate ‘Reluctance with the following:

SSC JE Electrical 2019 with solution SET-1 Reflected Light/Incident Light =

SSC JE Electrical 2019 with solution SET-1 Lamp efficiency is measured in

SSC JE Electrical 2019 with solution SET-1
A synchronous motor runs at 600rpm, which of the following case is true?

SSC JE Electrical 2019 with solution SET-1
A single-phase circuit’s power factor can be measured with a/an

SSC JE Electrical 2019 with solution SET-1
A magnetic circuit is applied with a current that changes at a rate of 5 A/sec. The circuit has an inductance of 2H, then the self-induced EMF is

SSC JE Electrical 2019 with solution SET-1
Relate ‘Reluctance with the following:

SSC JE Electrical 2019 with solution SET-1
Reflected Light/Incident Light =

SSC JE Electrical 2019 with solution SET-1
Lamp efficiency is measured in