The power factor of an A.C. circuit is equal to

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

R/Z

R/XL

Z/R

R/XC

R/Z

R/XL

Z/R

R/XC

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SSC JE Electrical 2019 with solution SET-1
Relate ‘Reluctance with the following:

A/m

Weber/m

A-T/Weber

Weber/A

A/m

Weber/m

A-T/Weber

Weber/A

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SSC JE Electrical 2019 with solution SET-1
A coil is wound with 50 turns and a current 8A produces a flux of 200μWb. Calculate the inductance of the coil

0.25 mH

1.25 mH

2.5 mH

0.125 mH

0.25 mH

1.25 mH

2.5 mH

0.125 mH

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SSC JE Electrical 2019 with solution SET-1
Identify the important feature of a DC series motor

High starting torque

Low starting torque

Zero starting torque

Medium starting torque

High starting torque

Low starting torque

Zero starting torque

Medium starting torque

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SSC JE Electrical 2019 with solution SET-1
A 200 V d.c machine as Ra = 0.5 Ω and its full-load Ia= 20A. Determine the induced e.m.f when the machine acts as a motor

190 V

215 V

200 V

210 V

190 V

215 V

200 V

210 V

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SSC JE Electrical 2019 with solution SET-1
In the circuit shown, the pressure coils of two wattmeters are connected to

R

Neutral Wire

Y

B

R

Neutral Wire

Y

B

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SSC JE Electrical 2019 with solution SET-1

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 Relate ‘Reluctance with the following:

SSC JE Electrical 2019 with solution SET-1 A coil is wound with 50 turns and a current 8A produces a flux of 200μWb. Calculate the inductance of the coil

SSC JE Electrical 2019 with solution SET-1 Identify the important feature of a DC series motor

SSC JE Electrical 2019 with solution SET-1 A 200 V d.c machine as Ra = 0.5 Ω and its full-load Ia= 20A. Determine the induced e.m.f when the machine acts as a motor

SSC JE Electrical 2019 with solution SET-1 In the circuit shown, the pressure coils of two wattmeters are connected to

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
Relate ‘Reluctance with the following:

SSC JE Electrical 2019 with solution SET-1
A coil is wound with 50 turns and a current 8A produces a flux of 200μWb. Calculate the inductance of the coil

SSC JE Electrical 2019 with solution SET-1
Identify the important feature of a DC series motor

SSC JE Electrical 2019 with solution SET-1
A 200 V d.c machine as Ra = 0.5 Ω and its full-load Ia= 20A. Determine the induced e.m.f when the machine acts as a motor

SSC JE Electrical 2019 with solution SET-1
In the circuit shown, the pressure coils of two wattmeters are connected to