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SSC JE Electrical 2019 with solution SET-2

SSC JE Electrical 2019 with solution SET-2
The urban service speed-time curve has no

Free-running period
Coasting period
Acceleration period
Braking period

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SSC JE Electrical 2019 with solution SET-2
Observe the given figure. If the diode is an ideal diode, then what are the values of Io and Vo respectively?

0.2 A, 0V
2 A, 10 V
0 A, 0.2 V
10A, 2 V

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Io = V/R = 20/100
Io = 0.2 A
Since the given diode is an ideal diode therefore there is no voltage drop across it.
Vo = Io × RD
Vo = 0.2 × 0
Vo = 0
Hence Io = 0.2 A & Vo = 0
 

SSC JE Electrical 2019 with solution SET-2
In excess-three code the 4-bit group that is used is

0011
0001
1110
0010

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The excess-3 code for a given decimal number is determined by adding ‘3’ or “0011” to each decimal digit in the given number.

SSC JE Electrical 2019 with solution SET-2
Oxygen is a/an ____ gas?

Paramagnetic
Ferromagnetic
Diamagnetic
Inert

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Atoms or ions with unpaired electrons are attracted to a magnetic field; the more unpaired electrons, the greater is the attraction. Such substances are called paramagnetic. Molecular oxygen is a paramagnetic gas by virtue of its two unpaired electrons.
 

SSC JE Electrical 2019 with solution SET-2
Which of the following is an important feature of a 3-phase synchronous motor?

Low starting torque
High starting torque
Low starting current
No starting torque

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Synchronous motors are not self-starting. The DC source is applied to the rotor of the synchronous Motor.

SSC JE Electrical 2019 with solution SET-2
If a zero-centered voltmeter has a scale from  5V to − 5V, then the span of it is

0 V
10V
−5 V
5 V

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Voltage Scale Span of  instrument = Vmax − Vmin
Given
Vmax = 5 V
Vmin = −5V
Span = 5 −(−5) = 10 V
 

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