SSC JE Electrical 2019 with solution SET-2

SSC JE Electrical 2019 with solution SET-2
The function of compensation winding in AC series motor is to

Improve commutation

Reduce the effects of armature reaction

Increase field flux

Reduced the armature resistance

Improve commutation

Reduce the effects of armature reaction

Increase field flux

Reduced the armature resistance

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SSC JE Electrical 2019 with solution SET-2
The wattage rating of a single-phase induction motor used as a ceiling fan will be in the range of

10 to 50 W

50 to 150 W

600 to 800 W

200 to 500 W

10 to 50 W

50 to 150 W

600 to 800 W

200 to 500 W

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SSC JE Electrical 2019 with solution SET-2
A long straight wire carries a current I = 10 A. At what distance is the magnetic field H = 1 A/m?

5/2π

10/2π

20/2π

1/2 π

5/2π

10/2π

20/2π

1/2 π

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SSC JE Electrical 2019 with solution SET-2
A transistor can be made to operate as a switch by operating it in which of the following regions?

Active region, saturation region

Active region, cut-off region

Active region

Saturation region, cut-off region

Active region, saturation region

Active region, cut-off region

Active region

Saturation region, cut-off region

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

N2/S

Nφ

N2μoμrA/I

Nφ/I

N2/S

Nφ

N2μoμrA/I

Nφ/I

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SSC JE Electrical 2019 with solution SET-2
The impedance at resonance offered by a parallel resonant circuit is

Minimum given by L/CR

Maximum given by I/CR

Maximum given by L/CR

Minimum given by I/CR

Minimum given by L/CR

Maximum given by I/CR

Maximum given by L/CR

Minimum given by I/CR

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