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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1
 When the only current source is active in the circuit, find the current through the 10Ω resistor

1.33 A
1.66 A
0.66 A
0 A

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SSC JE Electrical 2019 with solution SET-1
 The power factor of an A.C. circuit is equal to

Z/R
R/XC
R/XL
R/Z

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In electrical engineering, the power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load to the apparent power in the circuit ” R/Z”.
 

SSC JE Electrical 2019 with solution SET-1
 Find the frequency of rotor induced EMF of a 3-phase, 440V, 50 Hz induction motor has a slip of 10%

2.5Hz
5Hz
50Hz
25Hz

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Given Data
Voltage = 440 V
Frequency = 50 Hz
Slip = 10% =0.1
Now,
Rotor frequency = slip × frequency
= 0.1 × 50 = 5 Hz
 

SSC JE Electrical 2019 with solution SET-1
 Which of the following lamps employs a bimetallic strip?

Incandescent lamp
Fluorescent lamp
Sodium vapor lamp
Mercury vapor lamp

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

2 Ω
5 Ω
10 Ω
1 Ω

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

From the figure it can be concluded that the voltmeter reads 5 volts as shown in the figure below. Based on the voltmeter and ammeter readings in the measuring network, determine the value of the resistor R Here Current I = 1/2 A = 0.5 A Voltage V = 5 V R = V/I = 0.5/5 R = 10Ω


SSC JE Electrical 2019 with solution SET-1
 Prevention of interference with neighboring telephone lines can be done by:

Reducing skin effect
Using bundled conductors
Reducing corona
Transposing transmission lines

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