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
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

215 V

210 V

200 V

190 V

215 V

210 V

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SSC JE Electrical 2019 with solution SET-1
______ Opposes the change in circuit voltage

Resistance

Inductive reactance

Capacitance

Inductance

Resistance

Inductive reactance

Capacitance

Inductance

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SSC JE Electrical 2019 with solution SET-1
The resistive component of the rotor with resistance R2 offered to the backward rotating flux wave in a single-phase motor runs with slip s is given as

R2 ⁄ S

R2 ⁄ (1 + S)

R2 ⁄ (2 − S)

R2 ⁄ (1 − S)

R2 ⁄ S

R2 ⁄ (1 + S)

R2 ⁄ (2 − S)

R2 ⁄ (1 − S)

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SSC JE Electrical 2019 with solution SET-1
The voltmeter is shown in the circuit reads:

2.4 V

1.2 V

24 V

12 V

2.4 V

1.2 V

24 V

12 V

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SSC JE Electrical 2019 with solution SET-1
What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

300 W

100 W

500 W

400 W

300 W

100 W

500 W

400 W

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SSC JE Electrical 2019 with solution SET-1
Split-phase, capacitor, and shaded-pole single-phase motors classified as:

A.C. series motors

1-phase induction motors

Un-excited synchronous motors

Repulsion motors

A.C. series motors

1-phase induction motors

Un-excited synchronous motors

Repulsion motors

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SSC JE Electrical 2019 with solution SET-1

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 ______ Opposes the change in circuit voltage

SSC JE Electrical 2019 with solution SET-1 The resistive component of the rotor with resistance R2 offered to the backward rotating flux wave in a single-phase motor runs with slip s is given as

SSC JE Electrical 2019 with solution SET-1 The voltmeter is shown in the circuit reads:

SSC JE Electrical 2019 with solution SET-1 What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

SSC JE Electrical 2019 with solution SET-1 Split-phase, capacitor, and shaded-pole single-phase motors classified as:

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
______ Opposes the change in circuit voltage

SSC JE Electrical 2019 with solution SET-1
The resistive component of the rotor with resistance R2 offered to the backward rotating flux wave in a single-phase motor runs with slip s is given as

SSC JE Electrical 2019 with solution SET-1
The voltmeter is shown in the circuit reads:

SSC JE Electrical 2019 with solution SET-1
What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

SSC JE Electrical 2019 with solution SET-1
Split-phase, capacitor, and shaded-pole single-phase motors classified as: