Which of the following is NOT an expression to find self-inductance?

SSC JE Electrical 2019 with solution SET-2
Which of the following is NOT an expression to find self-inductance?

Nφ

N2/S

N2μoμrA/I

Nφ/I

Nφ

N2/S

N2μoμrA/I

Nφ/I

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SSC JE Electrical 2019 with solution SET-2
Which of the following is an important feature of a 3-phase synchronous motor?

Low starting torque

Low starting current

No starting torque

High starting torque

Low starting torque

Low starting current

No starting torque

High starting torque

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SSC JE Electrical 2019 with solution SET-2
An ideal transformer will not transform?,
I. Power
II. Current
III. Frequency
IV. Voltage

II and III

Ill and IV

I and III

I and II

II and III

Ill and IV

I and III

I and II

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SSC JE Electrical 2019 with solution SET-2
While estimating the overhead lines, if the number of poles required is 14, then what is the estimated number of earth sets required?

3

4

5

2

3

4

5

2

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SSC JE Electrical 2019 with solution SET-2
During the ______ period the power supply to the motor is cut-off and the train is allowed to run due to its own momentum?

Coasting

Notching up

Braking

Free running

Coasting

Notching up

Braking

Free running

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SSC JE Electrical 2019 with solution SET-2
______braking is used where the load on the motor has very high inertia (e.g. in electric trains)?

Regenerative

Coasting

Rheostatic

Plugging

Regenerative

Coasting

Rheostatic

Plugging

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SSC JE Electrical 2019 with solution SET-2

SSC JE Electrical 2019 with solution SET-2 Which of the following is NOT an expression to find self-inductance?

SSC JE Electrical 2019 with solution SET-2 Which of the following is an important feature of a 3-phase synchronous motor?

SSC JE Electrical 2019 with solution SET-2 An ideal transformer will not transform?,I. PowerII. CurrentIII. FrequencyIV. Voltage

SSC JE Electrical 2019 with solution SET-2 While estimating the overhead lines, if the number of poles required is 14, then what is the estimated number of earth sets required?

SSC JE Electrical 2019 with solution SET-2 During the ______ period the power supply to the motor is cut-off and the train is allowed to run due to its own momentum?

SSC JE Electrical 2019 with solution SET-2 ______braking is used where the load on the motor has very high inertia (e.g. in electric trains)?

SSC JE Electrical 2019 with solution SET-2
Which of the following is NOT an expression to find self-inductance?

SSC JE Electrical 2019 with solution SET-2
Which of the following is an important feature of a 3-phase synchronous motor?

SSC JE Electrical 2019 with solution SET-2
An ideal transformer will not transform?,
I. Power
II. Current
III. Frequency
IV. Voltage

SSC JE Electrical 2019 with solution SET-2
While estimating the overhead lines, if the number of poles required is 14, then what is the estimated number of earth sets required?

SSC JE Electrical 2019 with solution SET-2
During the ______ period the power supply to the motor is cut-off and the train is allowed to run due to its own momentum?

SSC JE Electrical 2019 with solution SET-2
______braking is used where the load on the motor has very high inertia (e.g. in electric trains)?