If the field of the synchronous motor is under excited the power factor will be:

SSC JE Electrical 2019 with solution SET-1
If the field of the synchronous motor is under excited the power factor will be:

Zero

Leading

Unity

Lagging

Zero

Leading

Unity

Lagging

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SSC JE Electrical 2019 with solution SET-1
Two coupled coils with L1 = L2 = 0.5H have a coupling coefficient of K = 0.75. The turn ratio N1 ⁄ N2 = ?

0.5

1

2

4

0.5

1

2

4

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SSC JE Electrical 2019 with solution SET-1
The annual load factor of a generation station is equal to

(No. of units actually supplied per year) ⁄ (Max. possible demand × 8760)

(No. of units actually supplied per year) ⁄ (Max. possible demand)

(No. of units actually supplied per month) ⁄ (Max. possible demand × 8760)

(No. of units actually supplied per year) ⁄ (Max. possible demand)

(No. of units actually supplied per year) ⁄ (Max. possible demand × 8760)

(No. of units actually supplied per year) ⁄ (Max. possible demand)

(No. of units actually supplied per month) ⁄ (Max. possible demand × 8760)

(No. of units actually supplied per year) ⁄ (Max. possible demand)

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SSC JE Electrical 2019 with solution SET-1
Which of the following lamps has the shortest/less life span in working hours?

Incandescent lamp

Mercury vapor lamp

Sodium vapor lamp

Fluorescent lamp

Incandescent lamp

Mercury vapor lamp

Sodium vapor lamp

Fluorescent lamp

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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

30Ω

40Ω

20Ω

10Ω

30Ω

40Ω

20Ω

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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

−(V2 − V1)

V1

V2

(V2 − V1)

−(V2 − V1)

V1

V2

(V2 − V1)

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 If the field of the synchronous motor is under excited the power factor will be:

SSC JE Electrical 2019 with solution SET-1 Two coupled coils with L1 = L2 = 0.5H have a coupling coefficient of K = 0.75. The turn ratio N1 ⁄ N2 = ?

SSC JE Electrical 2019 with solution SET-1 The annual load factor of a generation station is equal to

SSC JE Electrical 2019 with solution SET-1 Which of the following lamps has the shortest/less life span in working hours?

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

SSC JE Electrical 2019 with solution SET-1
If the field of the synchronous motor is under excited the power factor will be:

SSC JE Electrical 2019 with solution SET-1
Two coupled coils with L1 = L2 = 0.5H have a coupling coefficient of K = 0.75. The turn ratio N1 ⁄ N2 = ?

SSC JE Electrical 2019 with solution SET-1
The annual load factor of a generation station is equal to

SSC JE Electrical 2019 with solution SET-1
Which of the following lamps has the shortest/less life span in working hours?

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