SSC JE Electrical 2019 with solution SET-1

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

10 Ω

1 Ω

2 Ω

5 Ω

10 Ω

1 Ω

2 Ω

5 Ω

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SSC JE Electrical 2019 with solution SET-1
The direction of the arrow represents the direction of when the diode is forward biased

N-type material

P-N Junction

Conventional current flow

P-type material

N-type material

P-N Junction

Conventional current flow

P-type material

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SSC JE Electrical 2019 with solution SET-1
A synchronous motor runs at 600rpm, which of the following case is true?

P = 10, f = 60 Hz

P= 12, f = 50 Hz

P = 8, f = 50 Hz

P = 12, f = 60 Hz

P = 10, f = 60 Hz

P= 12, f = 50 Hz

P = 8, f = 50 Hz

P = 12, f = 60 Hz

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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, 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

1, 6 and 12

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SSC JE Electrical 2019 with solution SET-1
A magnetic circuit is applied with a current that changes at a rate of 5 A/sec. The circuit has an inductance of 2H, then the self-induced EMF is

0.4 V

−4 V

−10 V

−2.5 V

0.4 V

−4 V

−10 V

−2.5 V

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SSC JE Electrical 2019 with solution SET-1
Identify the machine shown in the circuit

DC shunt motor

DC short shunt compound generator

DC short shunt compound motor

DC long shunt compound generator

DC shunt motor

DC short shunt compound generator

DC short shunt compound motor

DC long shunt compound generator

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