The power factor of an A.C. circuit is equal to

SSC JE Electrical 2019 with solution SET-1
The power factor of an A.C. circuit is equal to

Z/R

R/XL

R/Z

R/XC

Z/R

R/XL

R/Z

R/XC

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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, ammeter, and wattmeter

Combination of a voltmeter and ammeter

Wattmeter alone

Energy meter alone

Combination of a voltmeter, ammeter, and wattmeter

Combination of a voltmeter and ammeter

Wattmeter alone

Energy meter alone

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SSC JE Electrical 2019 with solution SET-1
Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

Pmech = (ωT)/60

Pmech = ωT

Pmech = (2πωT)/60

Pmech = (2πωT)

Pmech = (ωT)/60

Pmech = ωT

Pmech = (2πωT)/60

Pmech = (2πωT)

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

Lux/watt

Lumen/watt

Lumen/lux

Candela/watt

Lux/watt

Lumen/watt

Lumen/lux

Candela/watt

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SSC JE Electrical 2019 with solution SET-1
When the only current source is active in the circuit, find the current through the 10Ω resistor

1.33 A

1.66 A

0.66 A

0 A

1.33 A

1.66 A

0.66 A

0 A

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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

−2.5 V

−10 V

−4 V

0.4 V

−2.5 V

−10 V

−4 V

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 The power factor of an A.C. circuit is equal to

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 Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

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

SSC JE Electrical 2019 with solution SET-1 When the only current source is active in the circuit, find the current through the 10Ω resistor

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
The power factor of an A.C. circuit is equal to

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
Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

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

SSC JE Electrical 2019 with solution SET-1
When the only current source is active in the circuit, find the current through the 10Ω resistor

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