What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

SSC JE Electrical 2019 with solution SET-1
What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

400 W

300 W

100 W

500 W

400 W

300 W

100 W

500 W

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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

B

Neutral Wire

Y

R

B

Neutral Wire

Y

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SSC JE Electrical 2019 with solution SET-1
In the circuit shown, find the equivalent resistance between A and B.

100 ohm

75 ohm

50 ohm

150 ohm

100 ohm

75 ohm

50 ohm

150 ohm

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

Frequency

Ambient temperature

Steinmetz co-efficient of material

The volume of a material

Frequency

Ambient temperature

Steinmetz co-efficient of material

The volume of a material

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SSC JE Electrical 2019 with solution SET-1
Identify the INCORRECT statement with regards to synchronous motors

The field winding is placed on the rotor

The armature winding is placed on the stator

It is a self-starting machine

It is a constant speed motor

The field winding is placed on the rotor

The armature winding is placed on the stator

It is a self-starting machine

It is a constant speed motor

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SSC JE Electrical 2019 with solution SET-1
Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?

20Ω

40Ω

10Ω

30Ω

20Ω

40Ω

10Ω

30Ω

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

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 In the circuit shown, find the equivalent resistance between A and B.

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

SSC JE Electrical 2019 with solution SET-1 Identify the INCORRECT statement with regards to synchronous motors

SSC JE Electrical 2019 with solution SET-1 Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?

SSC JE Electrical 2019 with solution SET-1
What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

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
In the circuit shown, find the equivalent resistance between A and B.

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

SSC JE Electrical 2019 with solution SET-1
Identify the INCORRECT statement with regards to synchronous motors

SSC JE Electrical 2019 with solution SET-1
Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?