A 40KVA transformer has a core loss of 450 W and total loss of 800 W. Find the copper loss for Maximum efficiency

SSC JE Electrical 2018 with solution SET-1
A 40KVA transformer has a core loss of 450 W and total loss of 800 W. Find the copper loss for Maximum efficiency

450 W

350 W

800 W

300 W

450 W

350 W

800 W

300 W

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SSC JE Electrical 2018 with solution SET-1
Calculate the induced emf (in V) in the inductor of a series RL circuit having the inductance of 1.8 H and resistance of 90 Ohms after 20 milli-seconds when supplied by a 20 V DC source

14.76

20

10.03

7.36

14.76

20

10.03

7.36

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SSC JE Electrical 2018 with solution SET-1
Determine the voltage (in V) of a battery connected to a parallel plate capacitor (filled with air) when the area of the plate is 10 square centimeters, the separation between the plate is 5 mm and the charged stored on the plate is 20 pC

10.3

12.3

11.3

14.3

10.3

12.3

11.3

14.3

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SSC JE Electrical 2018 with solution SET-1
The relative permeability of the diamagnetic material is

Greater than 1

Greater than 100

Greater than 10

Less than 1

Greater than 1

Greater than 100

Greater than 10

Less than 1

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SSC JE Electrical 2018 with solution SET-1
Determine the percentage voltage error of a potential transformer with the system voltage of 11000 V and having a turn’s ratio of 104 if the measured secondary voltage is 98 V

8.84

7.92

6.25

5.75

8.84

7.92

6.25

5.75

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SSC JE Electrical 2018 with solution SET-1
The unit of luminous flux is

Candela

Lux

Lumen

Steradian

Candela

Lux

Lumen

Steradian

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SSC JE Electrical 2018 with solution SET-1

SSC JE Electrical 2018 with solution SET-1 A 40KVA transformer has a core loss of 450 W and total loss of 800 W. Find the copper loss for Maximum efficiency

SSC JE Electrical 2018 with solution SET-1 Calculate the induced emf (in V) in the inductor of a series RL circuit having the inductance of 1.8 H and resistance of 90 Ohms after 20 milli-seconds when supplied by a 20 V DC source

SSC JE Electrical 2018 with solution SET-1 Determine the voltage (in V) of a battery connected to a parallel plate capacitor (filled with air) when the area of the plate is 10 square centimeters, the separation between the plate is 5 mm and the charged stored on the plate is 20 pC

SSC JE Electrical 2018 with solution SET-1 The relative permeability of the diamagnetic material is

SSC JE Electrical 2018 with solution SET-1 Determine the percentage voltage error of a potential transformer with the system voltage of 11000 V and having a turn’s ratio of 104 if the measured secondary voltage is 98 V

SSC JE Electrical 2018 with solution SET-1 The unit of luminous flux is

SSC JE Electrical 2018 with solution SET-1
A 40KVA transformer has a core loss of 450 W and total loss of 800 W. Find the copper loss for Maximum efficiency

SSC JE Electrical 2018 with solution SET-1
Calculate the induced emf (in V) in the inductor of a series RL circuit having the inductance of 1.8 H and resistance of 90 Ohms after 20 milli-seconds when supplied by a 20 V DC source

SSC JE Electrical 2018 with solution SET-1
Determine the voltage (in V) of a battery connected to a parallel plate capacitor (filled with air) when the area of the plate is 10 square centimeters, the separation between the plate is 5 mm and the charged stored on the plate is 20 pC

SSC JE Electrical 2018 with solution SET-1
The relative permeability of the diamagnetic material is

SSC JE Electrical 2018 with solution SET-1
Determine the percentage voltage error of a potential transformer with the system voltage of 11000 V and having a turn’s ratio of 104 if the measured secondary voltage is 98 V

SSC JE Electrical 2018 with solution SET-1
The unit of luminous flux is