Power consumed by a balanced star connected 3-phase load is measured using the two-wattmeter method. The phase voltage and phase current in the load is 220V and 10 A respectively. What will be the difference in reading (in W) of the two wattmeters, if the power factor of the system is 0.8 Lagging?

SSC JE Electrical 2018 with solution SET-1
Power consumed by a balanced star connected 3-phase load is measured using the two-wattmeter method. The phase voltage and phase current in the load is 220V and 10 A respectively. What will be the difference in reading (in W) of the two wattmeters, if the power factor of the system is 0.8 Lagging?

3810.5

2861.2

3048.4

2286.3

3810.5

2861.2

3048.4

2286.3

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SSC JE Electrical 2018 with solution SET-1
If a fixed amount of power is to be transmitted over a certain length with the fixed power loss then_____,

The weight of the conductor required will be inversely proportional to the voltage and that of the power factor of the load

The weight of the conductor required will be inversely proportional to the square of the voltage and that of the power factor of the load

The weight of the conductor will be proportional to the square of the voltage and directly proportional to the power factor of the load.

The weight of the conductor required will be proportional to the voltage

The weight of the conductor required will be inversely proportional to the voltage and that of the power factor of the load

The weight of the conductor required will be inversely proportional to the square of the voltage and that of the power factor of the load

The weight of the conductor will be proportional to the square of the voltage and directly proportional to the power factor of the load.

The weight of the conductor required will be proportional to the voltage

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SSC JE Electrical 2018 with solution SET-1
Determine the maximum flux density (in T) of a material having eddy current coefficient of 2, the thickness of 4 mm, the volume of 20 cu.meter, which is supplied by the frequency of 50 Hz when the material has eddy current loss of 6 W

2.24

1.94

1.21

3.34

2.24

1.94

1.21

3.34

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SSC JE Electrical 2018 with solution SET-1
Which one of the following statement is NOT true about PMMC type instruments?

The cost of PMMC instruments is high

PMMC type Instruments have uniformly divided scale

Stray magnetic errors are small in these types of instruments

These instruments are suitable for both AC and DC currents

The cost of PMMC instruments is high

PMMC type Instruments have uniformly divided scale

Stray magnetic errors are small in these types of instruments

These instruments are suitable for both AC and DC currents

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SSC JE Electrical 2018 with solution SET-1
Which one of the following is a passive element to an electric circuit?

Voltage source

Resistors

Current source

Battery

Voltage source

Resistors

Current source

Battery

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SSC JE Electrical 2018 with solution SET-1
What will be the equivalent capacitance (in mF) of three capacitors connected in a series having the capacitance of 0.04 mF, 0.08 mF, and 0.02 mF respectively?

0.032

0.065

0.011

0.026

0.032

0.065

0.011

0.026

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SSC JE Electrical 2018 with solution SET-1

SSC JE Electrical 2018 with solution SET-1 If a fixed amount of power is to be transmitted over a certain length with the fixed power loss then_____,

SSC JE Electrical 2018 with solution SET-1 Determine the maximum flux density (in T) of a material having eddy current coefficient of 2, the thickness of 4 mm, the volume of 20 cu.meter, which is supplied by the frequency of 50 Hz when the material has eddy current loss of 6 W

SSC JE Electrical 2018 with solution SET-1 Which one of the following statement is NOT true about PMMC type instruments?

SSC JE Electrical 2018 with solution SET-1 Which one of the following is a passive element to an electric circuit?

SSC JE Electrical 2018 with solution SET-1 What will be the equivalent capacitance (in mF) of three capacitors connected in a series having the capacitance of 0.04 mF, 0.08 mF, and 0.02 mF respectively?

SSC JE Electrical 2018 with solution SET-1
If a fixed amount of power is to be transmitted over a certain length with the fixed power loss then_____,

SSC JE Electrical 2018 with solution SET-1
Determine the maximum flux density (in T) of a material having eddy current coefficient of 2, the thickness of 4 mm, the volume of 20 cu.meter, which is supplied by the frequency of 50 Hz when the material has eddy current loss of 6 W

SSC JE Electrical 2018 with solution SET-1
Which one of the following statement is NOT true about PMMC type instruments?

SSC JE Electrical 2018 with solution SET-1
Which one of the following is a passive element to an electric circuit?

SSC JE Electrical 2018 with solution SET-1
What will be the equivalent capacitance (in mF) of three capacitors connected in a series having the capacitance of 0.04 mF, 0.08 mF, and 0.02 mF respectively?