In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

SSC JE Electrical 2019 with solution SET-1
In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

0.5

0.8

0.9

1

0.5

0.8

0.9

1

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SSC JE Electrical 2019 with solution SET-1
The power factor of an A.C. circuit is equal to

R/Z

R/XC

R/XL

Z/R

R/Z

R/XC

R/XL

Z/R

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SSC JE Electrical 2019 with solution SET-1
Hysteresis loss is NOT a function of

The volume of a material

Steinmetz co-efficient of material

Ambient temperature

Frequency

The volume of a material

Steinmetz co-efficient of material

Ambient temperature

Frequency

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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

Synchronous motor

Induction motor

DC motor

Universal motor

Synchronous motor

Induction motor

DC motor

Universal motor

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SSC JE Electrical 2019 with solution SET-1
Which of the following is the correct relation regarding coupled coils?

M > (L1L2)0.5

M = (L1 − L2)/2

M ≤ (L1L2)0.5

M = (L1 + L2)/2

M > (L1L2)0.5

M = (L1 − L2)/2

M ≤ (L1L2)0.5

M = (L1 + L2)/2

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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

−2.5 V

−10 V

0.4 V

−4 V

−2.5 V

−10 V

0.4 V

−4 V

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

SSC JE Electrical 2019 with solution SET-1 The power factor of an A.C. circuit 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 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 is the correct relation regarding coupled coils?

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
In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

SSC JE Electrical 2019 with solution SET-1
The power factor of an A.C. circuit 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
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 is the correct relation regarding coupled coils?

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