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
Two coupled coils with L1 = L2 = 0.5H have a coupling coefficient of K = 0.75. The turn ratio N1 ⁄ N2 = ?

4

0.5

1

2

4

0.5

1

2

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

Unity

Zero

Leading

Lagging

Unity

Zero

Leading

Lagging

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SSC JE Electrical 2019 with solution SET-1
A magnetic circuit is applied with a current that changes at a rate of 5 A/sec. The circuit has an inductance of 2H, then the self-induced EMF is

−10 V

0.4 V

−4 V

−2.5 V

−10 V

0.4 V

−4 V

−2.5 V

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SSC JE Electrical 2019 with solution SET-1
Find the frequency of rotor induced EMF of a 3-phase, 440V, 50 Hz induction motor has a slip of 10%

2.5Hz

25Hz

50Hz

5Hz

2.5Hz

25Hz

50Hz

5Hz

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SSC JE Electrical 2019 with solution SET-1
The output of the logic circuit given below represents the gate.

AND

NOR

OR

NAND

AND

NOR

OR

NAND

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SSC JE Electrical 2019 with solution SET-1
In electric traction, the coefficient of adhesion is represented by

μ

Φ

λ

γ

μ

Φ

λ

γ

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SSC JE Electrical 2019 with solution SET-1

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

SSC JE Electrical 2019 with solution SET-1 A magnetic circuit is applied with a current that changes at a rate of 5 A/sec. The circuit has an inductance of 2H, then the self-induced EMF is

SSC JE Electrical 2019 with solution SET-1 Find the frequency of rotor induced EMF of a 3-phase, 440V, 50 Hz induction motor has a slip of 10%

SSC JE Electrical 2019 with solution SET-1 The output of the logic circuit given below represents the gate.

SSC JE Electrical 2019 with solution SET-1 In electric traction, the coefficient of adhesion is represented by

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

SSC JE Electrical 2019 with solution SET-1
A magnetic circuit is applied with a current that changes at a rate of 5 A/sec. The circuit has an inductance of 2H, then the self-induced EMF is

SSC JE Electrical 2019 with solution SET-1
Find the frequency of rotor induced EMF of a 3-phase, 440V, 50 Hz induction motor has a slip of 10%

SSC JE Electrical 2019 with solution SET-1
The output of the logic circuit given below represents the gate.

SSC JE Electrical 2019 with solution SET-1
In electric traction, the coefficient of adhesion is represented by