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
Two coupled coils with L1 = L2 = 0.5H have a coupling coefficient of K = 0.75. The turn ratio N1 ⁄ N2 = ?

1

4

0.5

2

1

4

0.5

2

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SSC JE Electrical 2019 with solution SET-1
The below symbol which is used in single line diagrams represents

Circuit breaker

Current transformer

Potential transformer

Power transformer

Circuit breaker

Current transformer

Potential transformer

Power transformer

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SSC JE Electrical 2019 with solution SET-1
If the copper loss of a transformer at half full load is 400 W, then the copper loss corresponding to full load is

1200 W

800 W

400 W

1600 W

1200 W

800 W

400 W

1600 W

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SSC JE Electrical 2019 with solution SET-1
The laws involved in the expression e = −dφ/dt are

Faraday’s and Ampere’s laws

Coulomb’s and Faraday’s laws

Faraday’s and Lenz’s laws

Coulomb’s and Ampere’s laws

Faraday’s and Ampere’s laws

Coulomb’s and Faraday’s laws

Faraday’s and Lenz’s laws

Coulomb’s and Ampere’s laws

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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?

Sodium vapor lamp

Incandescent lamp

Fluorescent lamp

Mercury vapor lamp

Sodium vapor lamp

Incandescent lamp

Fluorescent lamp

Mercury vapor lamp

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SSC JE Electrical 2019 with solution SET-1
4F2D is a/an number

Binary

Hexadecimal

Octal

Decimal

Binary

Hexadecimal

Octal

Decimal

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SSC JE Electrical 2019 with solution SET-1

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 The below symbol which is used in single line diagrams represents

SSC JE Electrical 2019 with solution SET-1 If the copper loss of a transformer at half full load is 400 W, then the copper loss corresponding to full load is

SSC JE Electrical 2019 with solution SET-1 The laws involved in the expression e = −dφ/dt are

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 4F2D is a/an number

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
The below symbol which is used in single line diagrams represents

SSC JE Electrical 2019 with solution SET-1
If the copper loss of a transformer at half full load is 400 W, then the copper loss corresponding to full load is

SSC JE Electrical 2019 with solution SET-1
The laws involved in the expression e = −dφ/dt are

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
4F2D is a/an number