SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1
Lamp efficiency is measured in

Lumen/watt

Lumen/lux

Lux/watt

Candela/watt

Lumen/watt

Lumen/lux

Lux/watt

Candela/watt

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SSC JE Electrical 2019 with solution SET-1
_____ power plant is the plant which uses a non-conventional source of energy

Hydroelectric

Thermal

Nuclear

Wind

Hydroelectric

Thermal

Nuclear

Wind

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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 = ?

2

4

1

0.5

2

4

1

0.5

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SSC JE Electrical 2019 with solution SET-1
Please check out below figure.

2 Ω

10 Ω

1 Ω

5 Ω

2 Ω

10 Ω

1 Ω

5 Ω

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SSC JE Electrical 2019 with solution SET-1
A shaded pole motor is basically a motor

Series

Synchronous

Shunt

Single-phase induction

Series

Synchronous

Shunt

Single-phase induction

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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?

30Ω

10Ω

40Ω

20Ω

30Ω

10Ω

40Ω

20Ω

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