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= 12, f = 50 Hz

P = 10, f = 60 Hz

P = 12, f = 60 Hz

P = 8, f = 50 Hz

P= 12, f = 50 Hz

P = 10, f = 60 Hz

P = 12, f = 60 Hz

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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?

20Ω

10Ω

40Ω

30Ω

20Ω

10Ω

40Ω

30Ω

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SSC JE Electrical 2019 with solution SET-1
Two decimal coils A and B of 1000 turns each lies in the parallel plane such that 80% of the flux produced by one coil links with the other. If a current of 5A flowing in A produces a flux of 0.05 mWb, then the flux linking with coil B is:

0.004 mWb

4 mWb

0.04 mWb

0.4 mWb

0.004 mWb

4 mWb

0.04 mWb

0.4 mWb

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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)

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

(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 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
Hysteresis loss is NOT a function of

The volume of a material

Frequency

Ambient temperature

Steinmetz co-efficient of material

The volume of a material

Frequency

Ambient temperature

Steinmetz co-efficient of material

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SSC JE Electrical 2019 with solution SET-1
The Norton’s current in the circuit shown below is

2A

4A

120A

12A

2A

4A

120A

12A

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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 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 Two decimal coils A and B of 1000 turns each lies in the parallel plane such that 80% of the flux produced by one coil links with the other. If a current of 5A flowing in A produces a flux of 0.05 mWb, then the flux linking with coil B is:

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 Hysteresis loss is NOT a function of

SSC JE Electrical 2019 with solution SET-1 The Norton’s current in the circuit shown below is

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
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
Two decimal coils A and B of 1000 turns each lies in the parallel plane such that 80% of the flux produced by one coil links with the other. If a current of 5A flowing in A produces a flux of 0.05 mWb, then the flux linking with coil B is:

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
Hysteresis loss is NOT a function of

SSC JE Electrical 2019 with solution SET-1
The Norton’s current in the circuit shown below is