In the circuit shown, the pressure coils of two wattmeters are connected to

SSC JE Electrical 2019 with solution SET-1
In the circuit shown, the pressure coils of two wattmeters are connected to

Y

R

Neutral Wire

B

Y

R

Neutral Wire

B

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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

190 V

200 V

210 V

215 V

190 V

200 V

210 V

215 V

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SSC JE Electrical 2019 with solution SET-1
In an AC network, the load connected is (10 + j10). The phase relation between the voltage applied and the current through the load is:

Voltage and current are in phase with each other

Voltage lags current by 30°

Voltage leads current by 45°

Voltage lags current by 45°

Voltage and current are in phase with each other

Voltage lags current by 30°

Voltage leads current by 45°

Voltage lags current by 45°

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SSC JE Electrical 2019 with solution SET-1
The Norton’s current in the circuit shown below is

12A

2A

4A

120A

12A

2A

4A

120A

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

Coulomb’s and Ampere’s laws

Coulomb’s and Faraday’s laws

Faraday’s and Lenz’s laws

Faraday’s and Ampere’s laws

Coulomb’s and Ampere’s laws

Coulomb’s and Faraday’s laws

Faraday’s and Lenz’s laws

Faraday’s and Ampere’s laws

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SSC JE Electrical 2019 with solution SET-1
______starting method CANNOT be used for starting a 3-phase squirrel cage induction motor

Rotor-resistance

Direct-on-line

Star-delta

Auto-transformer

Rotor-resistance

Direct-on-line

Star-delta

Auto-transformer

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 In the circuit shown, the pressure coils of two wattmeters are connected to

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 In an AC network, the load connected is (10 + j10). The phase relation between the voltage applied and the current through the load is:

SSC JE Electrical 2019 with solution SET-1 The Norton’s current in the circuit shown below 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 ______starting method CANNOT be used for starting a 3-phase squirrel cage induction motor

SSC JE Electrical 2019 with solution SET-1
In the circuit shown, the pressure coils of two wattmeters are connected to

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
In an AC network, the load connected is (10 + j10). The phase relation between the voltage applied and the current through the load is:

SSC JE Electrical 2019 with solution SET-1
The Norton’s current in the circuit shown below 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
______starting method CANNOT be used for starting a 3-phase squirrel cage induction motor