If an alternator is operating at unity power factor, then its terminal voltage is

SSC JE Electrical 2019 with solution SET-1
If an alternator is operating at unity power factor, then its terminal voltage is

Equal to the induced EMF, with zero voltage regulation

Less than the induced EMF, with positive voltage regulation

Greater than the induced EMF, with negative voltage regulation

Less than the induced EMF, with negative regulation

Equal to the induced EMF, with zero voltage regulation

Less than the induced EMF, with positive voltage regulation

Greater than the induced EMF, with negative voltage regulation

Less than the induced EMF, with negative regulation

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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 = (2πωT)

Pmech = ωT

Pmech = (2πωT)/60

Pmech = (ωT)/60

Pmech = (2πωT)

Pmech = ωT

Pmech = (2πωT)/60

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SSC JE Electrical 2019 with solution SET-1
With the current direction marked in the circuit shown, the net voltage applied is

V1

(V2 − V1)

V2

−(V2 − V1)

V1

(V2 − V1)

V2

−(V2 − V1)

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SSC JE Electrical 2019 with solution SET-1
______ Opposes the change in circuit voltage

Capacitance

Resistance

Inductive reactance

Inductance

Capacitance

Resistance

Inductive reactance

Inductance

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SSC JE Electrical 2019 with solution SET-1
Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?

10Ω

40Ω

30Ω

20Ω

10Ω

40Ω

30Ω

20Ω

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SSC JE Electrical 2019 with solution SET-1
________ is used to manufacture stay wire, earth wire, and structural components

Nichrome

Hard drawn copper

Cadmium copper

Galvanized steel

Nichrome

Hard drawn copper

Cadmium copper

Galvanized steel

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 If an alternator is operating at unity power factor, then its terminal voltage is

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 With the current direction marked in the circuit shown, the net voltage applied is

SSC JE Electrical 2019 with solution SET-1 ______ Opposes the change in circuit voltage

SSC JE Electrical 2019 with solution SET-1 Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?

SSC JE Electrical 2019 with solution SET-1 ________ is used to manufacture stay wire, earth wire, and structural components

SSC JE Electrical 2019 with solution SET-1
If an alternator is operating at unity power factor, then its terminal voltage is

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
With the current direction marked in the circuit shown, the net voltage applied is

SSC JE Electrical 2019 with solution SET-1
______ Opposes the change in circuit voltage

SSC JE Electrical 2019 with solution SET-1
Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?

SSC JE Electrical 2019 with solution SET-1
________ is used to manufacture stay wire, earth wire, and structural components