At f = _____R – L – C series circuit operates at unity power factor

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

1 ⁄ LC

1/2π√LC

1 ⁄ RLC

1/RC

1 ⁄ LC

1/2π√LC

1 ⁄ RLC

1/RC

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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?

10Ω

30Ω

20Ω

40Ω

10Ω

30Ω

20Ω

40Ω

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SSC JE Electrical 2019 with solution SET-1
Which of the following lamps employs a bimetallic strip?

Sodium vapor lamp

Incandescent lamp

Mercury vapor lamp

Fluorescent lamp

Sodium vapor lamp

Incandescent lamp

Mercury vapor lamp

Fluorescent lamp

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SSC JE Electrical 2019 with solution SET-1
Relate ‘Reluctance with the following:

Weber/m

A/m

A-T/Weber

Weber/A

Weber/m

A/m

A-T/Weber

Weber/A

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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

Faraday’s and Lenz’s laws

Coulomb’s and Ampere’s laws

Coulomb’s and Faraday’s laws

Faraday’s and Ampere’s laws

Faraday’s and Lenz’s laws

Coulomb’s and Ampere’s laws

Coulomb’s and Faraday’s laws

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SSC JE Electrical 2019 with solution SET-1
A 200 V d.c machine as Ra = 0.5 Ω and its full-load Ia= 20A. Determine the induced e.m.f when the machine acts as a motor

200 V

190 V

210 V

215 V

200 V

190 V

210 V

215 V

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SSC JE Electrical 2019 with solution SET-1

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 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 Which of the following lamps employs a bimetallic strip?

SSC JE Electrical 2019 with solution SET-1 Relate ‘Reluctance with the following:

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 A 200 V d.c machine as Ra = 0.5 Ω and its full-load Ia= 20A. Determine the induced e.m.f when the machine acts as a motor

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
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
Which of the following lamps employs a bimetallic strip?

SSC JE Electrical 2019 with solution SET-1
Relate ‘Reluctance with the following:

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
A 200 V d.c machine as Ra = 0.5 Ω and its full-load Ia= 20A. Determine the induced e.m.f when the machine acts as a motor