SSC JE Electrical 2019 with solution SET-1

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

Lumen/lux

Lumen/watt

Lux/watt

Candela/watt

Lumen/lux

Lumen/watt

Lux/watt

Candela/watt

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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

215 V

210 V

200 V

190 V

215 V

210 V

200 V

190 V

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SSC JE Electrical 2019 with solution SET-1
A coil is wound with 50 turns and a current 8A produces a flux of 200μWb. Calculate the inductance of the coil

0.25 mH

1.25 mH

2.5 mH

0.125 mH

0.25 mH

1.25 mH

2.5 mH

0.125 mH

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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

20Ω

30Ω

10Ω

40Ω

20Ω

30Ω

10Ω

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SSC JE Electrical 2019 with solution SET-1
For a three-layer stranded wire, the number of strands in the first, second, and third layer respectively are:

1, 6 and 12

1, 7 and 14

1, 5 and 10

1, 4 and 8

1, 6 and 12

1, 7 and 14

1, 5 and 10

1, 4 and 8

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SSC JE Electrical 2019 with solution SET-1
The output of the logic circuit given below represents the gate.

NAND

AND

NOR

OR

NAND

AND

NOR

OR

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