If dΦ is the luminous flux incident normally on an area dA, then Illuminance is given as

SSC JE Electrical 2019 with solution SET-1
If dΦ is the luminous flux incident normally on an area dA, then Illuminance is given as

dA ⁄ dΦ

Φ × A

dΦ − dA

dΦ ⁄ dA

dA ⁄ dΦ

Φ × A

dΦ − dA

dΦ ⁄ dA

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SSC JE Electrical 2019 with solution SET-1
Which of the following lamps has the shortest/less life span in working hours?

Incandescent lamp

Mercury vapor lamp

Fluorescent lamp

Sodium vapor lamp

Incandescent lamp

Mercury vapor lamp

Fluorescent lamp

Sodium vapor lamp

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SSC JE Electrical 2019 with solution SET-1
At f = _____R – L – C series circuit operates at unity power factor

1 ⁄ RLC

1 ⁄ LC

1/RC

1/2π√LC

1 ⁄ RLC

1 ⁄ LC

1/RC

1/2π√LC

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SSC JE Electrical 2019 with solution SET-1
The amount of AC content present in the DC output of a rectifier is given by

Form factor

Ripple factor

Peak factor

Power factor

Form factor

Ripple factor

Peak factor

Power factor

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SSC JE Electrical 2019 with solution SET-1
When the only current source is active in the circuit, find the current through the 10Ω resistor

1.33 A

0 A

0.66 A

1.66 A

1.33 A

0 A

0.66 A

1.66 A

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SSC JE Electrical 2019 with solution SET-1
Two coupled coils with L1 = L2 = 0.5H have a coupling coefficient of K = 0.75. The turn ratio N1 ⁄ N2 = ?

0.5

4

2

1

0.5

4

2

1

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 If dΦ is the luminous flux incident normally on an area dA, then Illuminance is given as

SSC JE Electrical 2019 with solution SET-1 Which of the following lamps has the shortest/less life span in working hours?

SSC JE Electrical 2019 with solution SET-1 At f = _____R – L – C series circuit operates at unity power factor

SSC JE Electrical 2019 with solution SET-1 The amount of AC content present in the DC output of a rectifier is given by

SSC JE Electrical 2019 with solution SET-1 When the only current source is active in the circuit, find the current through the 10Ω resistor

SSC JE Electrical 2019 with solution SET-1 Two coupled coils with L1 = L2 = 0.5H have a coupling coefficient of K = 0.75. The turn ratio N1 ⁄ N2 = ?

SSC JE Electrical 2019 with solution SET-1
If dΦ is the luminous flux incident normally on an area dA, then Illuminance is given as

SSC JE Electrical 2019 with solution SET-1
Which of the following lamps has the shortest/less life span in working hours?

SSC JE Electrical 2019 with solution SET-1
At f = _____R – L – C series circuit operates at unity power factor

SSC JE Electrical 2019 with solution SET-1
The amount of AC content present in the DC output of a rectifier is given by

SSC JE Electrical 2019 with solution SET-1
When the only current source is active in the circuit, find the current through the 10Ω resistor

SSC JE Electrical 2019 with solution SET-1
Two coupled coils with L1 = L2 = 0.5H have a coupling coefficient of K = 0.75. The turn ratio N1 ⁄ N2 = ?