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
An alternator has 9 slots/pole. What is the value of the pitch factor if each coil spans 8 slot pitches

Cos 30°

Cos 10°

Cos 60°

Cos 45°

Cos 30°

Cos 10°

Cos 60°

Cos 45°

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SSC JE Electrical 2019 with solution SET-1
An electric motor in which both the rotor and stator fields rotate with the same speed is called

Universal motor

DC motor

Induction motor

Synchronous motor

Universal motor

DC motor

Induction motor

Synchronous motor

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SSC JE Electrical 2019 with solution SET-1
Which of the following lamps employs a bimetallic strip?

Mercury vapor lamp

Fluorescent lamp

Incandescent lamp

Sodium vapor lamp

Mercury vapor lamp

Fluorescent lamp

Incandescent lamp

Sodium vapor lamp

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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 protect the motor from overloading

To improve the starting performance of the motor

To cut-off the starting winding at an appropriate instant

To out in the capacitor during running conditions

To protect the motor from overloading

To improve the starting performance of the motor

To cut-off the starting winding at an appropriate instant

To out in the capacitor during running conditions

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SSC JE Electrical 2019 with solution SET-1
Prevention of interference with neighboring telephone lines can be done by:

Reducing skin effect

Using bundled conductors

Transposing transmission lines

Reducing corona

Reducing skin effect

Using bundled conductors

Transposing transmission lines

Reducing corona

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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 = (2πωT)

Pmech = (ωT)/60

Pmech = (2πωT)/60

Pmech = ωT

Pmech = (2πωT)

Pmech = (ωT)/60

Pmech = (2πωT)/60

Pmech = ωT

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SSC JE Electrical 2019 with solution SET-1

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 An electric motor in which both the rotor and stator fields rotate with the same speed is called

SSC JE Electrical 2019 with solution SET-1 Which of the following lamps employs a bimetallic strip?

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 Prevention of interference with neighboring telephone lines can be done by:

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
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
An electric motor in which both the rotor and stator fields rotate with the same speed is called

SSC JE Electrical 2019 with solution SET-1
Which of the following lamps employs a bimetallic strip?

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
Prevention of interference with neighboring telephone lines can be done by:

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?