At f = _____R – L – C series circuit operates at unity power factor

SSC JE Electrical 2019 with solution SET-1
At f = _____R – L – C series circuit operates at unity power factor

1 ⁄ LC

1 ⁄ RLC

1/2π√LC

1/RC

1 ⁄ LC

1 ⁄ RLC

1/2π√LC

1/RC

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SSC JE Electrical 2019 with solution SET-1
An alternator has 9 slots/pole. What is the value of the pitch factor if each coil spans 8 slot pitches

Cos 60°

Cos 10°

Cos 45°

Cos 30°

Cos 60°

Cos 10°

Cos 45°

Cos 30°

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SSC JE Electrical 2019 with solution SET-1
Please check out below figure.

5 Ω

2 Ω

1 Ω

10 Ω

5 Ω

2 Ω

1 Ω

10 Ω

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SSC JE Electrical 2019 with solution SET-1
What is the reason behind using a centrifugal switch in a single-phase induction motor?

To improve the starting performance of the motor

To out in the capacitor during running conditions

To cut-off the starting winding at an appropriate instant

To protect the motor from overloading

To improve the starting performance of the motor

To out in the capacitor during running conditions

To cut-off the starting winding at an appropriate instant

To protect the motor from overloading

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SSC JE Electrical 2019 with solution SET-1
In the circuit shown, if R = 0, then the phase angle between v(t) and i(t) is

30°

0°

60°

90°

30°

0°

60°

90°

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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

30Ω

40Ω

10Ω

20Ω

30Ω

40Ω

10Ω

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 At f = _____R – L – C series circuit operates at unity power factor

SSC JE Electrical 2019 with solution SET-1 An alternator has 9 slots/pole. What is the value of the pitch factor if each coil spans 8 slot pitches

SSC JE Electrical 2019 with solution SET-1 Please check out below figure.

SSC JE Electrical 2019 with solution SET-1 What is the reason behind using a centrifugal switch in a single-phase induction motor?

SSC JE Electrical 2019 with solution SET-1 In the circuit shown, if R = 0, then the phase angle between v(t) and i(t) is

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
At f = _____R – L – C series circuit operates at unity power factor

SSC JE Electrical 2019 with solution SET-1
An alternator has 9 slots/pole. What is the value of the pitch factor if each coil spans 8 slot pitches

SSC JE Electrical 2019 with solution SET-1
Please check out below figure.

SSC JE Electrical 2019 with solution SET-1
What is the reason behind using a centrifugal switch in a single-phase induction motor?

SSC JE Electrical 2019 with solution SET-1
In the circuit shown, if R = 0, then the phase angle between v(t) and i(t) is

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?