In the circuit shown, find the equivalent resistance between A and B.<br/>

SSC JE Electrical 2019 with solution SET-1
In the circuit shown, find the equivalent resistance between A and B.

150 ohm

50 ohm

75 ohm

100 ohm

150 ohm

50 ohm

75 ohm

100 ohm

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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?

40Ω

10Ω

20Ω

30Ω

40Ω

10Ω

20Ω

30Ω

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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

1

2

0.5

4

1

2

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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

215 V

190 V

210 V

200 V

215 V

190 V

210 V

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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

Ripple factor

Form factor

Peak factor

Power factor

Ripple factor

Form factor

Peak factor

Power factor

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SSC JE Electrical 2019 with solution SET-1
What is the reason behind using a centrifugal switch in a single-phase induction motor?

To out in the capacitor during running conditions

To improve the starting performance of the motor

To protect the motor from overloading

To cut-off the starting winding at an appropriate instant

To out in the capacitor during running conditions

To improve the starting performance of the motor

To protect the motor from overloading

To cut-off the starting winding at an appropriate instant

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 In the circuit shown, find the equivalent resistance between A and B.

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 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 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 The amount of AC content present in the DC output of a rectifier is given by

SSC JE Electrical 2019 with solution SET-1 What is the reason behind using a centrifugal switch in a single-phase induction motor?

SSC JE Electrical 2019 with solution SET-1
In the circuit shown, find the equivalent resistance between A and B.

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
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
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
The amount of AC content present in the DC output of a rectifier is given by

SSC JE Electrical 2019 with solution SET-1
What is the reason behind using a centrifugal switch in a single-phase induction motor?